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。

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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。

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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。

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