nitrogen的意思？

The atmosphere consist of more than 70 % of nitrogen.大气中含有70%以上的氮气.Every tonne of coal contains, on average, 30 kilograms of nitrogen.每吨煤平均含30公斤氮.The plant requires nitrogen in order to make proteins.植物需要氮以便制造蛋白质....

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 trifluoride ( NF 3 ) is a toxic, colorless, odorless, nonflammable, oxidizing compres...

nitrogen的音标：nitrogen的英式发音音标为：['naɪtrədʒən]nitrogen的美式发音音标为：['naɪtrədʒən]...

琴虾蛄科...

清明化...

order的现在完成时为：ordered...

“相知”的拼音为：xiāng zhī ...

v.使惊骇，使充满恐惧( appall的第三人称单数 )...

微暗煤...

磁悬浮列车...

“高尚”的英语可以翻译为：noble，lofty，respectable，nobility，loftiness ...

“悖德”的拼音为：bèi dé...

“肠热病”的英语可以翻译为：[医] enteroidea，intestinal fevers ...

He proposes a short rest before we continue the work.在继续这项工作之前,他建议暂休一会儿.Aristotle proposes to cure such hardships by means of equity.亚里士多德提出用衡平的方法来解决这样的困难.He proposes electing Franc to appoint a director.他提议推选法朗西斯爵士任董事....

By the side of Hyde Park stands Kensington Gardens.肯星顿公园在海德公园旁边.They sat on various occasions beneath the great trees in Kensington Gardens.他们多次憩息在肯辛顿花园的大树下.Two police officers arrested him and took him to Kensington pol...

Catalase catalyes the breakdown of hydrogen peroxide.过氧化氢酶催化过氧化氢的分解.Effects on the activities of urease and catalase from bronopol were studied.研究了溴硝醇农药施入土壤后,土壤中脲酶和过氧化氢酶活性的变化情况.Catalase is found in the cytoplasm in small...

adv.那时，然后，那么，话说回来adj.当时的，那时的...

n.感觉器官，传感器，敏感元件...