氮的例句（氮在句子中的用法）

• 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.
• Vocalna takes micro gen from the air and places that in the soil and ricing it. 黎豆从空气中获取氮元素并将它们留在土壤中使之更有营养.
• A number of companies have now made the high - temperature superconductors into tapes a few millimetres across. 液氮是一种便宜而易得的商品,沸点是77K,我们利用它可以在实际应用中比较容易地冷却超导体.
• 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.
• Some commercial laboratories use periodic nitrate tests as guides. 许多商业性的试验室已应用定期的硝态氮分析作为指导.
• 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?
• Electroless plating method is applied to metallize the AlN sbstrate. 应用化学镀镍的方法实现了氮化铝的金属化.
• 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.
• The chemisorption was the important characteristic of the interaction of jamesonite with diethyl dithiocarbamate. 化学吸附是乙硫氮与脆硫锑铅矿相互作用的主要特征.
• The floatation performance of jamesonite with diethyldithiocarbamate as collector is studied. 研究了以乙硫氮为捕收剂时脆硫锑铅矿的浮选性质.