The urea-formaldehyde resin was made from industrial 36% formalin and 46% N carbamide in the laboratory. The urea-formaldehyde resin was used to imbed the insect specimens.
本文探讨了在实验室条件下利用工业用36 ％ 甲醛和含氮46％ 农用尿素合成脲醛树脂包埋昆虫标本的方法。
N. , Zhang, B. and Wang, S. , 1995, A mechanism for the formation of plasmoid-type CME in the solar corona, ACTA Astron. Sinica, 36 , 341.
郑惠南，张兵，王水， 1995，等离子体团型日冕物质抛射的形成机制，天文学报， 36 ， 341。
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