| 释义 |
These new industrial cleaners are much lower in ammonia and other dangerous chemicals than before.这些新型的工业用清洁剂中，氨和其他危险的化学物质含量都较以前的低很多。Hydrogen is used extensively in industry for the production of ammonia.氢气在工业上广泛用于制氨。Liquid ammonia gasifies readily.液态氨极易气化。Substances such as ammonia give out heat when they dissolve.诸如氨气之类的物质在溶解时会释放出热量。It is dangerous to inhale ammonia fumes.吸入氨气是很危险的。The soil was tested to make sure that it was free from ammonia or any other nitrogen compound.土壤经过了测定，以保证当中不含有氨或其他氮的化合物。 |