nitrogen
英 ['na?tr?d?(?)n]
美['na?tr?d??n]
- n. [化學] 氮
實用場景例句
- Nitrogen is the most important for high yield of rice.
- 氮對水稻高產最為重要.
期刊摘選
- However, remained organic matter was not enough for the denitrification of nitrogen nitrate.
- 然而, 有機物過早消耗對硝化后產生的硝酸氮再行反硝化作用不利.
期刊摘選
- The amide nitrogen of glutamine or asparagine functions more effectively than ammonia.
- 谷酰胺或天門冬酰胺的酰胺氮作用較氨更有效.
辭典例句
- The granularity of coal, inoculation amount of bacteria and additional nitrogen have some effect on desulfurization.
- 煤樣的粒度 、 菌接種量、加氮源對脫硫有一定影響.
期刊摘選
- Nitramines are substances which contain a nitro group bonded to nitrogen.
- 含有與氮原子相連的硝基的物質稱為硝胺.
辭典例句
- Can detect hydrogen, oxygen, nitrogen, carbon monoxide, methane, dioxide, ethylene, ethane, acetylene and other gases.
- 可對氫 、 氧 、 氮 、 一氧化碳 、 甲烷 、 二氧化碳 、 乙烯 、 乙烷 、 乙炔九種氣體檢測.
期刊摘選
- Increased nitrogen levels in seawater upset the natural ecological balance of the oceans.
- 海水中增加的氮含量打亂了海洋的自然生態(tài)平衡.
期刊摘選
- Enterprises shall gradually adopt measures to control the nitrogen oxide generated by the burning of fuel.
- 企業(yè)應當對燃料燃燒過程中產生的氮氧化物采取控制措施.
期刊摘選
- Nitrification is the key to biological wastewater nitrogen removal.
- 硝化作用是廢水生物脫氮中的關鍵.
期刊摘選
- High concentration of sulphur dioxide, nitrogen, oxides and dust have long been known to be harmful.
- 人們早已知道,二氧化硫 、 氮 、 氧化物和塵埃濃度高是有害的.
期刊摘選
- And also it refers the prevention and treatment technology of nitrogen in groundwater.
- 同時,要提高三氮污染的野外監(jiān)測水平和三氮污染的治理技術研究.
期刊摘選
- The lamp is full of gaseous nitrogen.
- 燈里充滿了氣體氮.
期刊摘選
- Nitrogen: Gaseous chemical element, chemical symbol N, atomic number 7.
- 氮: 氣態(tài)化學元素, 化學符號N, 原子序數7.
期刊摘選
- Common market, there are nitrogen, air, hydrogen, ammonia, acetylene, propane, steam and other special relief valve.
- 市面上常見的有氮氣 、 空氣 、 氫氣 、 氨 、 乙炔 、 丙烷 、 水蒸氣等專用減壓閥.
期刊摘選
- The mechanism of the high nitrogen stainless steel showing excellent properties also analyzed and discussed.
- 本文還對高氮不銹鋼表現出的優(yōu)異性能的機制進行了分析和討論.
期刊摘選
- Since nitrogen is non corrosive , special materials of construction are not required to prevent corrosion.
- 由于氮無腐蝕性,不需要特殊的建材.但是,選擇的建材必須能抗液氮的低溫.
期刊摘選
- There are nitrogen, oxygen, a little carbon dioxide and water vapour.
- 它們分別是氮氣, 氧氣, 少量的二氧化碳和水蒸汽.
期刊摘選
- Nitrogen dioxide and ozone may cause pulmonary edema.
- 二氧化炭和臭氧可以引起肺水腫.
辭典例句
- The atmosphere consist of more than 70 % of nitrogen.
- 大氣中含有70%以上的氮氣.
《簡明英漢詞典》
- Every tonne of coal contains, on average, 30 kilograms of nitrogen.
- 每噸煤平均含30公斤氮.
《簡明英漢詞典》
- What is the percentage of nitrogen in air?
- 空氣中所含的氮的比例是多少?
《簡明英漢詞典》
- Nitrogen is a gas without colour or smell.
- 氮是一種無色無臭的氣體.
《簡明英漢詞典》
- The plant requires nitrogen in order to make proteins.
- 植物需要氮以便制造蛋白質.
《現代漢英綜合大詞典》
- The faeces contain nitrogen and it is that which fertilises the desert soil.
- 糞便含氮，而正是氮可以肥化荒蕪的土地。
柯林斯例句