非离子型表面活性剂有聚氧乙烯缩合物糖酯和烷基胺氧化物.Nonionics include polyoxyethylene condensates, sucrose esters and alkyl amine oxides.非离子型表面活性剂有聚氧乙烯缩合物, 糖酯和烷基胺氧化物.Nonionic surface - active agents include polyoxyethylene condensates, sucrose e...
She looked at us in some perplexity.她有点困惑不解地看着我们.He scratched his head in perplexity.他困窘得直抓头皮.Most of them just stared at her in perplexity.他们多数人茫然地凝视着她。Robert outfaces his perplexity with his most peremptory air.罗伯特尽量以专...
The Egyptians probably measured their day in twenty-four hours of unequal length.埃及人很有可能用不同长度的24小时来度量日子。The ancient Egyptians knew ways to preserve dead bodies from decay.古埃及人懂得保存尸体，使之不会腐烂的方法。Carter found himself defendi...
这窗户是由旧日的彩色菱形玻璃装配的.This window was filled with old painted glass in quarries.他双手合成菱形。He formed his hands into the shape of a diamond.棒球掷了出去,象枪弹一样绕着菱形传递.At rifle speed the baseball was thrown around the diamond....