nitrogen source

• 氮源

nitrogen source的用法和样例：

例句

1. Peptone, a semidigested protein, is primarily a nitrogen source.
   属于半分解蛋白质的蛋白冻基本上是一种氮源。
2. This study is about carbon and nitrogen nutrient sources utilization.
   摘要通过试验探讨茶树菇对碳源和氮源的利用。
3. Therefore the EOM, especially non-hycrocarbons and asphaltene, could be considered as the most important source materials of BTZG in East Depression of the Liaohe basin.
   因此认为可溶有机质，尤其是其中的非烃和沥青质是东部凹陷过渡带气最主要的母源物质。

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