The major components of PM are sulfate, nitrates, ammonia, sodium chloride, carbon, mineral dust and water.(它的主要组成成分是硫酸盐、硝酸盐、氨、氯化钠、碳、矿物粉尘和水。)
Dilute the ammonia with water before you use it.(使用氨之前用水稀释它。)
Buy some squeegees, a brush and rags, a pail with rollers attached, and some some ammonia and vinegar.(买一些橡皮扫帚，一个刷子，一些破布，一个配有滚筒的木桶，以及一些氨水和醋。)
It creates an enzyme called vanadium nitrogenase, which produces ammonia from nitrogen.(这些作物都能产生一种名为钒固氮(vanadiumnitrogenase)的酶，它具有把氮转变成氨的能力。)
In August, the station's cooling pump went on the fritz, spewing ammonia into space.(今年八月，空间站的冷却泵失常，阿摩尼亚气体溢出进入太空。)
Then some astronomers came up with the idea that atmospheric ammonia might have acted as a greenhouse gas.(后来一些天文学家提出，大气中的氨可能起到温室气体的作用。)
You've got to have ammonia somewhere in the process.(在生产过程中一定会用到氨。)
Typically, going blonde requires higher levels of ammonia or bleaching products.(作为特色，烫染金发需要较高浓度的氨水或者漂白产品。)
Life generates methane, ammonia, oxygen, hydrogen, carbon dioxide, and many other gases.(生命生产出甲烷、氨气、氧气、氢气、二氧化碳以及其他气体。)
Insects produce less ammonia than pig and poultry farming, ten times less methane than livestock, and 300 times less nitrous oxide.(昆虫产生的氨比猪和家禽少，它们产生的甲烷比家畜少十倍，而产生的一氧化二氮比家畜少三百倍。)
