Has lightsome sense, enables skin to be more smooth.具有轻盈的使用感, 令肌肤更为光滑.The girl is lightsome ground came and took away a little dandelions.风姑娘轻盈地走过来,把小蒲公英带走了.The mind can be lightsome rise, forget!把心事遗忘,才能轻盈起来....
Based on the reactions , this paper reports research for synthesizing benzaldehyde.简要介绍以此类方法对合成苯甲醛的研究.Natural benzaldehyde is prepared by hydrolysis cassia leaf oil.从桂叶油出发,通过碱性水解制备天然苯甲醛.Pitch resin was synthesized from b...
Anhydride - type curing agents require the application of heat to promote polymerization.酸酐类固化剂则要求加热以促进聚合反应.Exothermic reaction can be reduced by adding hexahydrophthalic anhydride to the phthalic anhydride.用六氢化邻苯二酸酐加入到邻...