Hydrogen is used extensively in industry for the production of ammonia.氢气在工业上广泛用于制氨。He mobilized public opinion all over the world against hydrogen-bomb tests.他动员全世界的舆论反对氢弹试验。Carbon, hydrogen and oxygen combine chemicall...
General targets have hydrogen peroxide, sodium hypochlorite, potassium permanganate, and so on.一般的氧化剂有过氧化氢 、 次氯酸钠 、 高锰酸钾等.Hydrogen is a corlourless, odourless gas.氢气是一种无色 、 无味的气体.Producing the hydrogen fuel uses the harm...
For example, these security affiliates participated in the floating of 19,000,000,000 of issues in 1927.例如, 这些证券发行机构在1927年的流通证券中,就提供了一百九十亿美元的证券....twelve companies, including three affiliates of a Texas oil firm...12家公司，...
They'd already driven along the wharf so that she could point out her father's boat.他们已经开车沿码头走了一遍，好让她指出哪艘是她父亲的船。He tooled me down to the wharf.他开车把我送到码头.The berthing velocity, angle and maxi - mal displacement ...
He was grinning proudly, delighted with his achievements.他为自己的成就感到喜悦, 自豪地咧着嘴笑。...a mass of grinning teenage faces.一张张少年的笑脸He was grinning proudly,delighted with his achievements.他为自己的成就感到喜悦,自豪地咧着嘴笑。He was grinning widely...