One of these comes from making fertilisers, using the Haber-Boschprocess which converts nitrogen gas into ammonia.
其中一种是通过将氮气转换成氨气的Haber - Bosch工序来制造肥料。
2
Haber-Boschprocess(Haber ammonia process, synthetic ammonia process):First economically feasible method of directly synthesizing ammonia from hydrogen gas and atmospheric nitrogen.