三氟丙炔和全氟丁烯 -2 在这个区域也出现双重谱带.Duplication of bands in this region is also shown by trifluoropropyne and perfluoro 2 - butene.三氟丙炔和全氟丁烯 -2 在这个区域也出现双重谱带.Duplication of bands in this region also shown by trifluoropropyne and pe...
The fire blazed up when I added paraffin.我加了一些煤油,火就燃烧起来了.He took the paraffin stove on a picnic and the ruddy thing wouldn't work.他带了那个煤油炉去野餐，但是那个该死的东西根本用不了。Paraffin waxes are normally marketed on the basis of a mel...
According to the characteristics of element abiochemistry, the author concludes some methods of teaching on it.针对元素无机化学教学内容的特点, 介绍了在组织元素无机化学的教学过程中的几点做法和体会....
That area is an ornithologist's paradise.那个地区是鸟类学家的天堂。The islands are an ornithologist's paradise and a vacationer's delight.群岛是鸟类学家的天堂,度假者的乐园.In 1900 Frank Chapman , an ornithologist, suggested a count in...
The two countries have each expelled another diplomat following a round of tit-for-tat expulsions.在一轮针锋相对的驱逐事件之后，两国各又驱逐了一名外交官。There have been three expulsions from the school this year.今年学校已开除了三名学生.The Russian response t...
Using short, easily recognized words facilitates navigation with minimal conscious reading.采用短且易于识别的文字,才能让用户用最少的有意识阅读在界面中导航.It facilitates the combination of the different channels.它有利于把各信道组合起来.The extent to which softwa...