Four steamboat loads of spectators came to view a hanging in New Orleans.四轮船的观众来新奥尔良观看绞刑。That would be the steamboat.那得归功于汽船.The steamboat and the railroad cut deep into the wilderness.铁路轮船深入不毛之地....
The steamboat and the railroad cut deep into the wilderness.铁路轮船深入不毛之地.Transportation: Upholstery for steamboat, bus, railway car, ceiling, box sandwiching , anti - vibration of container and insulating liner.交通运业: 轮船 、 ...
化学家用电解法把水还原为氢.The chemist reduced water by electrolysis.经氧化 ― 还原反应, 铜渗入铁中.By oxidation - reduction reaction, copper is cemented into the iron.在需氧体系中, 氧是末端电子接受体并且被还原.In aerobic systems, oxygen is the terminal electron acc...