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- Determination of total nitrogen (Kjeldahl). 英文名称: Soils quality.
- 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。
- They spend the winter(s) in a warmer climate. 他们在气候较暖的地方过冬。
- Most plural nouns in English end in "s". 英语的复数名词多以“s”结尾。
- The sweater had shrunk after repeated washing(s). 这件套头毛衣洗过多次已缩水了。
- Some old folk(s) have peculiar tastes. 有些老人有特殊的爱好。
- Answer the following question(s). 回答下列问题。
- Most plural nouns in English end in s'. 英语的复数名词多以s结尾。
- The drug affects one's power(s) of concentration. 这种药影响人精神不能集中。
- Here are the designs. Which one(s) do you prefer? 这就是那些图样.;你喜欢哪一个[些]?
- Total Nitrogen in Lubricating Oils by Modified Kjeldahl Method, Method of Test for (05. 用改良的基耶达法测定润滑油中总氮量的试验方法(05。
- Which journal(s) do you subscribe to? 你订阅哪一种杂志?
- The novel had an enormous vogue in the 1930's. 这本小说在三十年代曾广为流传。
- Hence, any chemical rich in nitrogen can potentially trick the Kjeldahl or Dumas test. 因此,任何富含氮的化学物质都可能骗过克耳达或杜马斯测试法。
- He earned four A's in the final examinations. 他期末考试四门功课得优。
- The Beatles were the pop idols of the 60's. 披头士乐队是六十年代人们崇拜的偶像。
- The total nitrogen content of compound fertilizer have been studied using the Kjeldahl Method. 摘要采用凯氏定氮法,对复合肥料总氮含量进行了测定研究。
- He returned to the fold at his 80's. 他在八十高龄又恢复原来的宗教信仰。
- She has an amused twinkle in her eye(s). 她高兴得双目熠熠发亮。
- Research methods about standard samples of water quality determination of Kjeldahl nitrogen were put forward. 提出了水质凯氏氮标准样品的研究方法。