http://bjlgdxxbzkb.xml-journal.net/ Transactions of Beijing institute of Technology day 15 $dateUtil.getCurrentDateTime("yyyy-MM-dd HH:mm:ss","zh") journal@bit.edu.cn journal@bit.edu.cn $dateUtil.getCurrentDateTime("yyyy-MM-dd HH:mm:ss","zh") zh journal@bit.edu.cn 1001-0645 http://bjlgdxxbzkb.xml-journal.net/article/id/199904104 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904104 http://bjlgdxxbzkb.xml-journal.net/article/id/199904105 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904105 http://bjlgdxxbzkb.xml-journal.net/article/id/199904106 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904106 http://bjlgdxxbzkb.xml-journal.net/article/id/199904107 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904107 http://bjlgdxxbzkb.xml-journal.net/article/id/199904108 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904108 http://bjlgdxxbzkb.xml-journal.net/article/id/199904109 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904109 http://bjlgdxxbzkb.xml-journal.net/article/id/199904110 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): . article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904110 http://bjlgdxxbzkb.xml-journal.net/article/id/199904111 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 1. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 1. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 1. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904111 1 http://bjlgdxxbzkb.xml-journal.net/article/id/199904112 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 11. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 11. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 11. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904112 11 http://bjlgdxxbzkb.xml-journal.net/article/id/199904113 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 11. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 11. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 11. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904113 11 http://bjlgdxxbzkb.xml-journal.net/article/id/199904114 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 91. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 91. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 91. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904114 91 http://bjlgdxxbzkb.xml-journal.net/article/id/199904115 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 91. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 91. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 91. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904115 91 http://bjlgdxxbzkb.xml-journal.net/article/id/199904116 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 397-402. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 397-402. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 397-402. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904116 397-402 http://bjlgdxxbzkb.xml-journal.net/article/id/199904117 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 403-406. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 403-406. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 403-406. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904117 403-406 http://bjlgdxxbzkb.xml-journal.net/article/id/199904118 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 407-411. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 407-411. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 407-411. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904118 407-411 http://bjlgdxxbzkb.xml-journal.net/article/id/199904119 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 412-415. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 412-415. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 412-415. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904119 412-415 http://bjlgdxxbzkb.xml-journal.net/article/id/199904120 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 416-419. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 416-419. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 416-419. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904120 416-419 http://bjlgdxxbzkb.xml-journal.net/article/id/199904121 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 420-423. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 420-423. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 420-423. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904121 420-423 http://bjlgdxxbzkb.xml-journal.net/article/id/199904122 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 424-428. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 424-428. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 424-428. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904122 424-428 http://bjlgdxxbzkb.xml-journal.net/article/id/199904123 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 429-433. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 429-433. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 429-433. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904123 429-433 http://bjlgdxxbzkb.xml-journal.net/article/id/199904124 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 434-437. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 434-437. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 434-437. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904124 434-437 http://bjlgdxxbzkb.xml-journal.net/article/id/199904125 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 438-441. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 438-441. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 438-441. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904125 438-441 http://bjlgdxxbzkb.xml-journal.net/article/id/199904126 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 438-441. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 438-441. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 438-441. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904126 438-441 http://bjlgdxxbzkb.xml-journal.net/article/id/199904127 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 442-445. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 442-445. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 442-445. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904127 442-445 http://bjlgdxxbzkb.xml-journal.net/article/id/199904128 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 446-449. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 446-449. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 446-449. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904128 446-449 http://bjlgdxxbzkb.xml-journal.net/article/id/199904129 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 450-453. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 450-453. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 450-453. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904129 450-453 http://bjlgdxxbzkb.xml-journal.net/article/id/199904130 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 454-458. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 454-458. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 454-458. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904130 454-458 http://bjlgdxxbzkb.xml-journal.net/article/id/199904131 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 459-463. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 459-463. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 459-463. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904131 459-463 http://bjlgdxxbzkb.xml-journal.net/article/id/199904132 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 464-468. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 464-468. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 464-468. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904132 464-468 http://bjlgdxxbzkb.xml-journal.net/article/id/199904133 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 469-473. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 469-473. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 469-473. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904133 469-473 http://bjlgdxxbzkb.xml-journal.net/article/id/199904134 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 474-477. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 474-477. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 474-477. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904134 474-477 http://bjlgdxxbzkb.xml-journal.net/article/id/199904135 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 478-481. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 478-481. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 478-481. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904135 478-481 http://bjlgdxxbzkb.xml-journal.net/article/id/199904136 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 482-486. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 482-486. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 482-486. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904136 482-486 http://bjlgdxxbzkb.xml-journal.net/article/id/199904137 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 487-491. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 487-491. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 487-491. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904137 487-491 http://bjlgdxxbzkb.xml-journal.net/article/id/199904138 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 492-496. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 492-496. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 492-496. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904138 492-496 http://bjlgdxxbzkb.xml-journal.net/article/id/199904139 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 497-501. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 497-501. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 497-501. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904139 497-501 http://bjlgdxxbzkb.xml-journal.net/article/id/199904140 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 502-505. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 502-505. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 502-505. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904140 502-505 http://bjlgdxxbzkb.xml-journal.net/article/id/199904141 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 506-510. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 506-510. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 506-510. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904141 506-510 http://bjlgdxxbzkb.xml-journal.net/article/id/199904142 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 511-515. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 511-515. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 511-515. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904142 511-515 http://bjlgdxxbzkb.xml-journal.net/article/id/199904143 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 516-520. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 516-520. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 516-520. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904143 516-520 http://bjlgdxxbzkb.xml-journal.net/article/id/199904144 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 521-524. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 521-524. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 521-524. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904144 521-524 http://bjlgdxxbzkb.xml-journal.net/article/id/199904145 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 525-527. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 525-527. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 525-527. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904145 525-527 http://bjlgdxxbzkb.xml-journal.net/article/id/199904146 <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 528-530. 刊出日期: <br/><p></p> <br/>bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 528-530. Published Personal use only, all commercial or other reuse prohibited bob手机在线登陆学报自然版. 1999 ${article.volume}(4): 528-530. article doi: bob手机在线登陆学报自然版 4 http://bjlgdxxbzkb.xml-journal.net/article/id/199904146 528-530

map