nitrogen
英音[ ˈnaɪtrədʒən ] 美音[ ˈnaɪtrədʒən ]

常用释义

词性释义

n.

[化学] 氮
例句
  • 全部
  • 氮气
  • 氮元素
在土壤养分贫乏的地区,经过两年内的种植后就必须很大量应用合成氮肥与矿物肥料。
The stem cells had been removed when the embryo was a few days old and were stored in tanks of liquid nitrogen.
在受精卵只有几天大的时候,他们提出去这些干细胞,并将其储存在液氮容积中。
二氧化氮及臭氧的浓度,每年也有几天超出了空气质素指标。
The body is freeze-dried in liquid nitrogen, then vibrated so that it dissolves into a fine powder.
(在这种技术中,)遗体在液氮中被冷冻干燥,之后通过振动化为齑粉。
When the liquid nitrogen is gone, grind everything up to a fine powder.
在液氮挥发前要把样品捣碎成细小的粉末状。
If this did not occur there would be none of the heavier elements. No carbon, no nitrogen, no life.
如果这个不发生,就没有任何的更重的元素。没有碳,没有氮,没有生命。
Melamine has no nutritional value but is high in nitrogen, making products with it appear higher in protein.
三聚氰胺没有营养价值,却富含能提高产品蛋白质含量的氮元素。
他们说,不论有多少额外的二氧化碳可供植物吸收,氮气的不足将限制植物生长。
我想问,当达到平衡后,氮气,氢气和氨气的分压,分别是多少?
Since the 1960s the amount of fertiliser used by farmers has increased sixfold, and not all of that extra nitrogen ends up in their crops.
自从1960年代,农夫使用的肥料增加了六倍,而且并不是所有氮肥都被农作物吸收;
它最终被证明是,如果我有分子振动,你们知道,空气中有氮和氧。
The best form of usable nitrogen seems to be a combination of di-ammonium phosphate (DAP) and yeast extract.
最好的方式,似乎是一种可用氮结合荻磷铵(磷酸二铵)、酵母粉。
“在我看来氮带来了很大的问题但给予它的关注还很少,”他说。
液氨主要用作制冷剂及用于制取铵盐和氮肥,是化学工业中一种重要的、存在危险性的化学品。
We are producing milk. rather than the production of nitrogen. even if it is to eat animals is not the nutritional value of it!
我们是生产奶粉。而不是生产氮。就算是给畜生吃也是没有营养价值的呀!
X-ray photoelectron spectroscopy (XPS) shows that the reason is the increase of oxygen and nitrogen polar functional groups on the surface.
射线光电子能谱(XPS)分析表明,这是由于涤纶表面被引入了大量含氧和含氮极性基团所致。
刘易斯表示,为此阿凯迪亚公司尝试通过改变作物的生物构造,改善它们吸收氮的能力。
The scientists said the Mini- Helicon is the first rocket to run on nitrogen, the most abundant gas in Earth's atmosphere.
科学家称,迷你海利空是世界上第一种使用氮推进的火箭,而氮气则是地球大气层中含量最为丰富的气体。
In the current paper we summarized the methods for the detecting of the total nitrogen, as well as the separate. . .
本文总结了石油产品中总氮的测定方法,对石油产品中氮化物的分离分析也作了概括。
Corn is one of the best indicators for nitrogen deficiency among the field-crop plants.
玉米是大多数大田作物中缺氮的最好的指示植物。
就此问题,那些工作于液氮温度或液氮温度之上的高温超导体在技术上并不先进。
如果人类没有加速氮循环的速度,那么就远不会有众多人对地球上做其他的各种事情。
Results: There was no significant difference of every-day intake of calories and nitrogen between the two groups.
两组患者日均热卡及氮摄入量比较差异无统计学意义,营养支持耐受性好。
中国水稻氮肥用量占全世界水稻氮肥总用量的37%。
亚洲氮肥生产过剩的情况预计将迅速增加,但将继续进口磷肥和钾肥。
And we're going to ask the question, so I take nitrogen, I take some, hydrogen, I mix them together in a container.
我们接下来会问一些问题,我们有氮气,氢气,把它们混合。
本发明公开了一种用于润滑油添加剂的含硼氮化合物及其制备方法。
It could be concluded that the apple fruit with high nitrogen content, leading to hitter pit was an important factor for disease.
苹果果实内氮含量过高,是导致苦痘病发生的重要因素。
炉膛内安置有不锈钢真空管,从真空管前端抽真空,后端排气或进氮气。
moreover , they are rugged and do not require liquid - nitrogen cooling , making them compact enough to fit inside a shoe box.
另外,这种雷射装置相当坚固耐用,且不需要以液态氮冷却,体积得以缩小到可以放进鞋盒。
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。
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。
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。
常用短语
ammonia nitrogen
ammonia nitrogen - 氨氮;氨型氮,氨基氮
nitrogen content
nitrogen content - 含氮量;总氮量
total nitrogen
total nitrogen - 总氮,总氮量
nitrogen fertilizer
nitrogen fertilizer - 氮肥;氮肥肥料
liquid nitrogen
nitrogen oxide
nitrogen oxide - 氧化氮;氮的氧化物
同义词
n.
[化学]氮
同根词 (词根nitrogen)
nitrogenous adj 氮的;[化学] 含氮的
nitrogenize vt 使含氮;使氮化