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1·The tanker was carrying liquid nitrogen.

油轮那时正在运送液态氮。《柯林斯英汉双解大词典》

2·The faeces contain nitrogen which fertilizes the soil.

排泄物含有肥沃土壤的氮。《柯林斯英汉双解大词典》

3·Nitrogen is an unstable element.

氮是一种不稳定的元素。

4·Nitrogen is one of the byproducts.

氮就是其中的一个副产品。

5·The plant requires nitrogen in order to make proteins.

植物需要氮以制造蛋白质。

6·Nitrogen dioxide is a pollutant emitted by automobiles.

二氧化氮是汽车排放的一种污染物。

7·Soils are most commonly deficient in nitrogen and phosphorus.

土壤最经常缺乏氮和磷。

8·Nitrogen dioxide in the smoke induces the seeds to germinate.

烟雾中的二氧化氮诱导种子发芽。

9·Above all, they will have to discover how much nitrogen it possesses.

最重要的是，他们必须搞清楚这里面含有多少氮。

10·You said that the nitrogen cycle is also an important nutrient cycle.

你说了，氮循环也是一个重要的营养循环。

氮

1·The tanker was carrying liquid nitrogen.

油轮那时正在运送液态氮。《柯林斯英汉双解大词典》

2·The faeces contain nitrogen which fertilizes the soil.

排泄物含有肥沃土壤的氮。《柯林斯英汉双解大词典》

3·The plant requires nitrogen in order to make proteins.

植物需要氮以制造蛋白质。

4·Soils are most commonly deficient in nitrogen and phosphorus.

土壤最经常缺乏氮和磷。

5·Above all, they will have to discover how much nitrogen it possesses.

最重要的是，他们必须搞清楚这里面含有多少氮。

氮气

1·A century earlier, Henry Cavendish had noted the existence of a residual gas when oxygen and nitrogen are removed from air, but its importance had not been realized.

一个世纪前，亨利·卡文迪什注意到当空气中的氧气和氮气被除去，还有其他剩余气体存在，但人们还没有认识到它们的重要性。

2·And, although you think that nitrogen, I mean, it's an inert gas.

尽管你认为那是氮气，我的意思是，它是一种惰性气体。

3·Trees also depend on nitrogen to grow.

树木也依赖于氮气才能生长。

4·The planet has a relatively thin atmosphere composed mostly of nitrogen and oxygen.

这颗行星有相对较薄的大气层，主要由氮气和氧气组成。

5·The atmosphere is mostly nitrogen.

大气中也主要是氮气。

氮元素

1·Algae range in size from single-celled organisms to giant kelp plants. Some live near the surface of the ocean, and these algae need nitrogen to grow.

海藻包括小到单细胞有机体、大到巨型褐藻的多种类型植物，有些海藻生长于海面附近，依赖氮元素成长。

2·More immediately, fertilizers used in farming have injected vast amounts of nitrogen and phosphorus into regional environments.

比较直观的是，用于耕地的化肥输入大量的氮元素和磷元素到环境当中。

3·They found that the fungus was getting nitrogen from the air.

他们发现真菌从空气中获得氮元素。

4·This is significant, because when Roman took the whale poop back to his lab, he found it was rich in nitrogen.

这点很重要，因为当罗曼把鲸鱼粪便带回他的实验室后，他发现里面富含氮元素。

5·One day in 1995 in Allen Good's laboratory in Edmonton, Alberta, a student made a serendipitous mistake: she forgot to add nitrogen when she watered some experimental canola (rapeseed) plants.

1995年的一天，在位于艾伯塔省埃德蒙顿的艾伦·古德实验室里，一个学生犯了一个偶然发现的错误：她在给实验用的油菜(油菜籽)浇水的时候，忘记了添加氮元素。

(1)ammonia nitrogen氨氮；氨型氮，氨基氮

(1)nitrogen content含氮量；总氮量

(1)total nitrogen总氮，总氮量

(1)nitrogen fertilizer氮肥；氮肥肥料

(1)liquid nitrogen液氮

(1)nitrogen oxide氧化氮；氮的氧化物