nitrogen的例句（nitrogen在句子中的用法）

• Every tonne of coal contains,on average,30 kilograms of nitrogen. 每吨煤平均含30公斤氮。
• Nitrogen is a gas without colour or smell. 氮是一种无色无臭的气体。
• Urea is commonly used as the source of nitrogen in foliage sprays. 尿素作为氮素给源普遍地应用于叶面喷布.
• Nodule bacteria are very good at biological nitrogen fixation. 根瘤菌是生物固氮的能手.
• The effect of nitrogen can be overcome by sheathing the flame in argon. 氮的影响则可以通过用氩气包覆火焰而予以克服.
• These bacteria break down nitrogen from the air into a form that legumes can use. 这些细菌能把空气中的氮气分解成豆科植物可利用的形式.
• Will you sunder nitrogen from air? 你能从空气中把氮气分离出来 吗 ?
• Nitrogen trifluoride ( NF 3 ) is a toxic, colorless, odorless, nonflammable, oxidizing compressed gas. 三氟化氮 ( NF3 ) 是有毒 、 无色 、 无嗅 、 不可燃的氧化性压缩气体.
• The plant requires nitrogen in order to make proteins. 植物需要氮以便制造蛋白质.
• Every tonne of coal contains, on average, 30 kilograms of nitrogen. 每吨煤平均含30公斤氮.
• What is the percentage of nitrogen in air? 空气中所含的氮的比例是多少?
• Natural gas liquification involves both mixed - refrigerant cycle and nitrogen expander cycle. 近几年国内天然气液化技术主要采用混合工质液化循环和氮膨胀液化循环.
• Method: 30 cases of keloid were treated with MEBO Scar Lotion after liquid nitrogen refrigeration. 方法: 对30例瘢痕疙瘩患者液氮冷冻后外涂美比欧疤痕平.
• Utilization efficiency of nitrogen fertilizer and Kalium were enhanced. 促进番茄对氮和钾的吸收.
• Non - basic nitrogen - containing series include pyrroles, indoles, carbazoles and benzcarbazoles. 不含碱性氮的化合物包括吡咯 、 吲哚 、 咔唑和苯咔唑.
• Nitrogen manuring is essential to get a good yield of cut herbage. 为了获得刈割牧草良好的产量,使用氮肥是极为重要的.
• Nitrogen supply largely controls the growth and fruiting of most plants. 氮的供应密切地关系到绝大多数植物的生长与结果.
• The nitrogen utilization efficiency were downtrend with the amount of topdressing increased. 随著施氮量增加,追施氮肥的利用率明显下降.
• In deamination, the nitrogen - containing amino portion of the molecules is removed. 在脱氨作用中, 分子 含氨基 的部分被移去.
• The atmosphere consist of more than 70 % of nitrogen. 大气中含有70%以上的氮气.