他精通机械，了解许多有关声音的知识。He was a very mechanical person, who knew a lot about sound.男孩和女孩会喜欢摆弄各种机械装置。Boys and girls will enjoy messing about with any kind of machine.在报关单上，寄货人将货物列为农用机械。On the customs declaration, the sender la...
我继续研究飞蛾，并将研究范围扩展到其他昆虫。I continued studying moths, and branched out to other insects.我看着飞蛾爬到灯罩外面。I watched the moth crawl up the outside of the lampshade.飞蛾在窗帘上跳来跳去,弄上了许多污点.The moths tapped and blurred at the window scree...
大量碳氢化合物如苯并芘也是诱变剂.A large number of hydrocarbons such as benzopyrene are also mutagenic.后来我才知道, 芭芘娃娃的头发全都被我从根部剪断了, 结果头发都掉光了.Later, I just know, BaBiWaWa hair roots from all my hair cut, the results are falling.建立了粮食中苯并芘残留...
建立用色差法确定化学反应终点的分析方法,探索色度学在化学分析中的应用.A analytical method was developed for the termination of chemical reaction by chromatism.色标检测方法从原理上分为色度学方法和光度学方法两种.The principle for color scale detection divided into two kinds of colo...