His mood of deep pessimism cannot have been leavened by his mode of transport—a black cab.他极度悲观沮丧，而他的代步工具——一辆黑色的出租车，丝毫不能舒缓这一情绪。My first reaction was one of deep pessimism.我的第一反应非常悲观。An atmosphere of pessimism pervades th...
Optimism was gradually taking the place of pessimism.乐观情绪逐渐取代了悲观主义。There is a mood of pessimism in the company about future job prospects.公司中有一种对工作前景悲观的情绪。There were good grounds for pessimism about future progress.对将来的发...
On global building sewer uses cupreous conduit is development trend.在全球建筑上下水道用铜水管是发展趋势.Using EDTA dispart ray luminosity method test cupreous in gold - cupreous - cadmium liquid.采用EDTA分光光度法测定金 - 铜 - 镉镀液中的铜.Whorl copper c...
最常用的连接结构是搭接, 嵌接和平接.The most commonly used joint configurations are the lap , scarf, and butt joints.外壳、玻璃应完整,嵌接要良好.Shell glass should be complete embedded is good.通过嵌接的方式连在一起.To join by a rabbet....