The factory is retooling to start making the new line of cars.工厂正在重新装备以便开始制造新系列车型.But it is not just building highways and retooling market trading mechanisms.但这不只是建造高速公路和重新设计市场交易机制.With shipping costs surging, companies...
六亚甲基二异氰酸酯 ( HMDI ) 可用在预聚物中代替甲苯二异氰酸酯〔TDI〕.Hexamethylene diisocyanate ( HMDI ) may be used in prepolymer, in place of TDI.柯达叙述了一种直链的活性亚甲基两当量的黄成色剂.Kodak company describes open chain reactive methylene two - equivalent yello...
彩色玻璃板先经过蚀刻，然后用传统技法手工着色。The stained-glass panels are etched and then handpainted using traditional methods.那种酸在晶体表面蚀刻出一些小孔。The acid etched holes in the crystal surface.玛丽很喜爱蚀刻艺术.Mary is very keen on etching....
斯科特和阿蒙森都迫不及待地等待着春天曙光的来临.Scott and Amundsen waited anxiously for spring.每逢入秋,一年当中观测假曙光的最佳时节来临了.假曙光即是我们所知的黄道光.Autumn is the best time of year the false dawn also known as the zodiacal light....