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...
John Major and the Duke of Edinburgh led the mourners.约翰·梅杰和爱丁堡公爵走在送葬队伍前面。Biggart Donald, the Glasgow-based marketing agency, has won two Edinburgh accounts.比加特·唐纳德，这家驻格拉斯哥的营销代理公司已赢得了两个爱丁堡的客户。There are over 350 films in ...
Armenia is a land - locked country located in Eurasia's Southern Caucasus mountain range.亚美尼亚是位于欧亚大陆南高加索山脉的内陆国.Few parts of the world have as miserable a history as the north Caucasus ( see article ) .世界上很少有地方有与 北高加...