The effect of nitrogen source on the sporulation was complex.
氮源对孢子产生的影响较为复杂。
There was little growth apparent when ammonia as a sole nitrogen source.
当氨作为唯一的氨源时，它对细菌的生长无刺激性。
The best carbon source is maltose. The best nitrogen source is asparagine.
最佳碳源为麦芽糖，最佳氮源为天门冬素；
Lactose is also identified as the best carbon source while asparagine the best nitrogen source.
同时确定了乳糖为最佳碳源，天门冬素为最佳氮源。
The influence of ventilatory capacity and nitrogen source on fermentation process were also studied.
并研究了通气量、氮源对发酵的影响。
Manure has become a minor source of nitrogen in all major agricultural countries.
在主要的农业国家动物粪便已经不是氮肥的主要来源。
Always use an external source of nitrogen or air for this purpose.
做类似事情时，只能用氮气或空气作为外在气源。
Always use an external source of nitrogen or air for this purpose.
做类似事情时，只能用氮气或空气作为外在气源。
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