nitrogen in steel
英
美
- 钢中氮
双语例句
- After harvesting the crops, he tested them for nitrogen content.
作物收获后,他测定了作物中氮的含量。 - The Kjeldahl is a general analysis method for determining nitrogen in rubber.
凯氏定氮法是测定橡胶中氮含量的常规分析方法。
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