The nineteenth century witnessed a revolution in ship design and propulsion.19世纪船舶设计和船舶动力领域发生了重大的变革。Interest in jet propulsion was now growing at the Air Ministry.航空部对喷气推进的兴趣正在增加。The liquids employed for rocket propulsio...
They found a bacterium visible to the human eye.他们发现了一种肉眼可见的细菌。They have isolated the bacterium in its pure form.他们已经把细菌分离出来,使它们处于较纯的状态.A bacterium is identified as the cause for his duodenal ulcer.一种细菌被断定为造成他十二指肠溃疡的根源....
Lemon and lime juice were both temporarily out of stock.柠檬汁和酸橙汁暂时都缺货。Red tights are out of stock.红色紧身衣脱销了.The blue skirts are out of stock.这种蓝衬衫已脱销....
For your career, Betula forest without relying on heaven - sent, mainly by self - seeking.适合你的事业, 白桦林不靠天赐, 主要靠 自我 寻找.Arimatsu economic timber , Parkinson , Chatham , Betula, Tilia, Green and other species.经济用材林有松 、 柏、漆、桦...