nitrogen
常见例句
- Nitrogen is a gas without color or smell.
氮是一种无色无臭的气体。 - 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. - The faeces contain nitrogen and it is that which fertilises the desert soil.
粪便含氮,而正是氮可以肥化荒芜的土地。 - 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. - What is the percentage of nitrogen in air?
空气中所含的氮的比例是多少? - Nitrogen is a gas without colour or smell.
氮是一种无色无臭的气体. - The plant requires nitrogen in order to make proteins.
植物需要氮以便制造蛋白质. - The amide nitrogen of glutamine or asparagine functions more effectively than ammonia.
谷酰胺或天门冬酰胺的酰胺氮作用较氨更有效. - Nitramines are substances which contain a nitro group bonded to nitrogen.
含有与氮原子相连的硝基的物质称为硝胺. - Nitrogen dioxide and ozone may cause pulmonary edema.
二氧化炭和臭氧可以引起肺水肿. - Nitrogen is the most important for high yield of rice.
氮对水稻高产最为重要. - However, remained organic matter was not enough for the denitrification of nitrogen nitrate.
然而, 有机物过早消耗对硝化后产生的硝酸氮再行反硝化作用不利. - The granularity of coal, inoculation amount of bacteria and additional nitrogen have some effect on desulfurization.
煤样的粒度 、 菌接种量、加氮源对脱硫有一定影响. - Can detect hydrogen, oxygen, nitrogen, carbon monoxide, methane, dioxide, ethylene, ethane, acetylene and other gases.
可对氢 、 氧 、 氮 、 一氧化碳 、 甲烷 、 二氧化碳 、 乙烯 、 乙烷 、 乙炔九种气体检测. - Increased nitrogen levels in seawater upset the natural ecological balance of the oceans.
海水中增加的氮含量打乱了海洋的自然生态平衡. - Enterprises shall gradually adopt measures to control the nitrogen oxide generated by the burning of fuel.
企业应当对燃料燃烧过程中产生的氮氧化物采取控制措施. - Nitrification is the key to biological wastewater nitrogen removal.
硝化作用是废水生物脱氮中的关键. - High concentration of sulphur dioxide, nitrogen, oxides and dust have long been known to be harmful.
人们早已知道,二氧化硫 、 氮 、 氧化物和尘埃浓度高是有害的. - And also it refers the prevention and treatment technology of nitrogen in groundwater.
同时,要提高三氮污染的野外监测水平和三氮污染的治理技术研究. - The lamp is full of gaseous nitrogen.
灯里充满了气体氮. - Nitrogen: Gaseous chemical element, chemical symbol N, atomic number 7.
氮: 气态化学元素, 化学符号N, 原子序数7. - Common market, there are nitrogen, air, hydrogen, ammonia, acetylene, propane, steam and other special relief valve.
市面上常见的有氮气 、 空气 、 氢气 、 氨 、 乙炔 、 丙烷 、 水蒸气等专用减压阀. - The mechanism of the high nitrogen stainless steel showing excellent properties also analyzed and discussed.
本文还对高氮不锈钢表现出的优异性能的机制进行了分析和讨论. - Since nitrogen is non corrosive , special materials of construction are not required to prevent corrosion.
由于氮无腐蚀性,不需要特殊的建材.但是,选择的建材必须能抗液氮的低温. - There are nitrogen, oxygen, a little carbon dioxide and water vapour.
它们分别是氮气, 氧气, 少量的二氧化碳和水蒸汽. - The atmosphere consist of more than 70 % of nitrogen.
大气中含有70%以上的氮气. - Sample gas tubes are flushed with nitrogen.
采气管得用氮气吹扫. - Nitrogen is the most commonly used gas.
氮气是最常用的气体. - Will you sunder nitrogen from air?
你能从空气中把氮气分离出来 吗 ? - The instrument are continually flushed with nitrogen to avoid fouling.
仪表引压线连续吹氮气,以免堵塞. - Nitrogen: Gaseous chemical element, chemical symbol N, atomic number 7.
氮: 气态化学元素, 化学符号N, 原子序数7. - Common market, there are nitrogen, air, hydrogen, ammonia, acetylene, propane, steam and other special relief valve.
市面上常见的有氮气 、 空气 、 氢气 、 氨 、 乙炔 、 丙烷 、 水蒸气等专用减压阀. - There are nitrogen, oxygen, a little carbon dioxide and water vapour.
它们分别是氮气, 氧气, 少量的二氧化碳和水蒸汽. - The supply of nitrogen gas can be ensured only by steady run of nitrogen generator.
只有制氮设备的稳定运行,才能保证氮气供应. - Andit breaks down, it naturally releases nitrogen into the soil.
分解时, 它会自然地向土壤释放氮气. - AlN crystals were grown by modified sandwich sublimation method in nitrogen atmosphere.
采用改进的升华法在氮气环境下制备氮化铝单晶体. - Its best carbon source is sodium acetate and best nitrogen source is ammonium chloride.
它的最佳的碳源是钠醋酸盐,并且最佳的氮气来源是卤砂. - Nitrogen forms about 80 % of the air around the Earth.
围绕地球的大气80%是氮气. - 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. - For liquid hydrogen system, Helium purge is required after or before nitrogen purge.
对于液氢系统用氮气吹扫之后,还要用氦气吹扫. - The experiment system by which nitrogen gas, oil mixture, temperature and their combination can be realized.
建立了一套可以实现氮气 、 油雾 、 低温及其各种组合的实验系统. - The main features of the fissure type nitrogen blow hole and its formation mechanism was described.
叙述灰铸铁件裂隙状氮气孔的主要特征、形成机理. - Nitrogen generators , with clean compressed air the raw material the technology of absorption ( PSA ) .
氮气 发生器所 需要的主要原材料为洁净的压缩空气. - A good general purpose gas has about 97 % nitrogen and 3 % hydrogen.
一种较好的通用气体含大约97%的氮气和3%的氢气. - It was also indicated that the anodic gas species was mainly nitrogen by vapor phase chromatograph.
通过气相色谱仪分析确定阳极气体产物主要是氮气. - Storage, generation, purification, protection and manufacturing equipment of hydrogen, nitrogen, argon, ammonia, etc.
氢气 、 氮气 、 氩气 、 氨气和气体存储 、 发生 、 纯化 、 气体保护及制造设备等. - The oxygen service pumps are suitable for pumping oxygen air nitrogen argon and other nonreactive gases.
氧气泵适合抽氧气、大气、氮气、氩气和其他不反应气体. - A Ni base superalloy columnar preform were produced through nitrogen spray atomization and deposition.
利用氮气雾化喷射沉积技术成功地获得了宇航用变形镍基高温合金柱形坯. - An experiment on a submunition dispenser with airbag and nitrogen generant was presented.
对以氮气发生剂为抛撒药的子弹药气囊抛撒装置进行实验. - The plants keep the nitrogen in their roots , legum.
植物将氮气保存在他们的根部. - This Permit will require all pipes and vessels to be purged with nitrogen before work commences.
工作许可证将要求在进行作业前,对所有的设备和容器用氮气进行吹扫. 返回 nitrogen