The method was established for purification of diflubenzuron by crystal technique with mixed solvents.本文论述了利用混合溶剂——结晶法提纯除虫脲的分析技术.The separation and determination of the primary impurities of diflubenzuron by liquid chrom...
Crying is part of our natural expressiveness.哭泣是自然情感的一种表现。His painting rose to a fresh expressiveness and revealed a shrewder insight.他的画富有一种新的表达力,显示出更敏锐的洞察力.The audiences are impressed by the expressiveness of the actor...
The popular ceramics industry expanded towards the middle of the 19th century.到19世纪中期，大众制陶业得到了发展。The service is being expanded following the success of a pilot scheme.在试验性方案获得成功后，这项服务正在推广中。Transport networks need to be e...
They roundly denounced him for quitting.他们严厉地斥责他擅自离去.Mr. Ben was thinking about quitting his job, but I told him not to go off at half cock.本先生想要辞掉工作, 可我告诉他不要仓促行事.When he said he was quitting school, I did a double take....
Dense smoke swirled and billowed, its rank fumes choking her.滚滚浓烟盘旋翻腾，恶臭味呛得她喘不过气来。Within minutes the hall was full of choking smoke.几分钟不到，大厅里就弥漫着呛人的烟雾了。Choking back tears, he said Mary died in his arms.他强忍住泪水，说玛丽死在了他的怀里。...