Using benzene as internal standard, the calibration factors of derivative of aldehydes 2,4 - dinitrophenylhydrazine ( DNPH ) were measured.将醛类物质与2, 4- 二硝基苯肼 ( DNPH ) 的衍生反应液直接进样,以苯为内标物,测定了甲醛 、 乙醛等醛类物质DNPH衍生物的校正因子....
Stretch at speed frame creel.粗纱机条筒架意外伸长.He would stay for hours at a stretch in the laboratory.他在实验室里一蹲就是好几个小时.I don't think we can stretch out the fuel to the end of this week, so you'd better go and get some ...
借助于自己发现的一种全新的方法，他获得了成功。He succeeded with the aid of a completely new method he discovered.新发现的行星大约是地球的10倍那么大。The new planet is about ten times the size of the earth.他们说尸体是在叛军重新占领这个地区时发现的。They said the bodies were found w...
At least one British officer was feeding him with classified information.至少有一个英国官员在向他提供机密情报。After a few days the caterpillars stopped feeding...几天后毛虫停止进食。I saw his brindled cow feeding on fish remnants.我看见他的用鱼杂碎喂养的斑纹奶牛。L...
Smoking triggers off cell proliferation.吸烟会引起细胞增生。The rapid movement of an object towards the eye triggers the blink reflex.快速朝眼前移动物体,就会引起眨眼反应.Some people say that violent movies are potential triggers for juvenile delin...