• 魏碑心思朗文詞典
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                nitrogen

                N 開頭單詞四級詞匯考研詞匯專四核心詞專八核心詞托福詞匯SAT詞匯GMAT詞匯

                常見例句

                  用作名詞 (n.)

                • Nitrogen is a gas without color or smell.
                  氮是一種無色無臭的氣體。
                • 更多例句

                • The atmosphere consist of more than 70 % of nitrogen.
                  大氣中含有70%以上的氮氣.
                • Every tonne of coal contains, on average, 30 kilograms of nitrogen.
                  每噸煤平均含30公斤氮.
                • The plant requires nitrogen in order to make proteins.
                  植物需要氮以便制造蛋白質(zhì).
                • 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。
                • The atmosphere consist of more than 70 % of nitrogen.
                  大氣中含有70%以上的氮氣.
                • Every tonne of coal contains, on average, 30 kilograms of nitrogen.
                  每噸煤平均含30公斤氮.
                • What is the percentage of nitrogen in air?
                  空氣中所含的氮的比例是多少?
                • Nitrogen is a gas without colour or smell.
                  氮是一種無色無臭的氣體.
                • The plant requires nitrogen in order to make proteins.
                  植物需要氮以便制造蛋白質(zhì).
                • 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.
                • 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(zhì)稱為硝胺.
                • Nitrogen dioxide and ozone may cause pulmonary edema.
                  二氧化炭和臭氧可以引起肺水腫.
                • Nitrogen is the most important for high yield of rice.
                  氮對水稻高產(chǎn)最為重要.
                • However, remained organic matter was not enough for the denitrification of nitrogen nitrate.
                  然而, 有機(jī)物過早消耗對硝化后產(chǎn)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.
                  煤樣的粒度 、 菌接種量、加氮源對脫硫有一定影響.
                • 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.
                • 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.
                • Enterprises shall gradually adopt measures to control the nitrogen oxide generated by the burning of fuel.
                    企業(yè)應(yīng)當(dāng)對燃料燃燒過程中產(chǎn)生的氮氧化物采取控制措施.
                • Nitrification is the key to biological wastewater nitrogen removal.
                  硝化作用是廢水生物脫氮中的關(guān)鍵.
                • 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.
                • 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(shù)研究.
                • The lamp is full of gaseous nitrogen.
                  燈里充滿了氣體氮.
                • Nitrogen: Gaseous chemical element, chemical symbol N, atomic number 7.
                  氮: 氣態(tài)化學(xué)元素, 化學(xué)符號N, 原子序數(shù)7.
                • 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.
                • 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(xiàn)出的優(yōu)異性能的機(jī)制進(jìn)行了分析和討論.
                • 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.
                • 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.
                • The atmosphere consist of more than 70 % of nitrogen.
                  大氣中含有70%以上的氮氣.
                • Sample gas tubes are flushed with nitrogen.
                  采氣管得用氮氣吹掃.
                • Nitrogen is the most commonly used gas.
                  氮氣是最常用的氣體.
                • Will you sunder nitrogen from air?
                  你能從空氣中把氮氣分離出來 嗎 ?
                • The instrument are continually flushed with nitrogen to avoid fouling.
                  儀表引壓線連續(xù)吹氮氣,以免堵塞.
                • Nitrogen: Gaseous chemical element, chemical symbol N, atomic number 7.
                  氮: 氣態(tài)化學(xué)元素, 化學(xué)符號N, 原子序數(shù)7.
                • 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.
                • 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.
                • The supply of nitrogen gas can be ensured only by steady run of nitrogen generator.
                  只有制氮設(shè)備的穩(wěn)定運(yùn)行,才能保證氮氣供應(yīng).
                • Andit breaks down, it naturally releases nitrogen into the soil.
                  分解時, 它會自然地向土壤釋放氮氣.
                • AlN crystals were grown by modified sandwich sublimation method in nitrogen atmosphere.
                  采用改進(jìn)的升華法在氮氣環(huán)境下制備氮化鋁單晶體.
                • Its best carbon source is sodium acetate and best nitrogen source is ammonium chloride.
                  它的最佳的碳源是鈉醋酸鹽,并且最佳的氮氣來源是鹵砂.
                • Nitrogen forms about 80 % of the air around the Earth.
                  圍繞地球的大氣80%是氮氣.
                • These bacteria break down nitrogen from the air into a form that legumes can use.
                  這些細(xì)菌能把空氣中的氮氣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.
                  對于液氫系統(tǒng)用氮氣吹掃之后,還要用氦氣吹掃.
                • The experiment system by which nitrogen gas, oil mixture, temperature and their combination can be realized.
                  建立了一套可以實現(xiàn)氮氣 、 油霧 、 低溫及其各種組合的實驗系統(tǒng).
                • The main features of the fissure type nitrogen blow hole and its formation mechanism was described.
                  敘述灰鑄鐵件裂隙狀氮氣孔的主要特征、形成機(jī)理.
                • Nitrogen generators , with clean compressed air the raw material the technology of absorption ( PSA ) .
                  氮氣 發(fā)生器所 需要的主要原材料為潔凈的壓縮空氣.
                • A good general purpose gas has about 97 % nitrogen and 3 % hydrogen.
                  一種較好的通用氣體含大約97%的氮氣和3%的氫氣.
                • It was also indicated that the anodic gas species was mainly nitrogen by vapor phase chromatograph.
                  通過氣相色譜儀分析確定陽極氣體產(chǎn)物主要是氮氣.
                • Storage, generation, purification, protection and manufacturing equipment of hydrogen, nitrogen, argon, ammonia, etc.
                  氫氣 、 氮氣 、 氬氣 、 氨氣和氣體存儲 、 發(fā)生 、 純化 、 氣體保護(hù)及制造設(shè)備等.
                • The oxygen service pumps are suitable for pumping oxygen air nitrogen argon and other nonreactive gases.
                  氧氣泵適合抽氧氣、大氣、氮氣、氬氣和其他不反應(yīng)氣體.
                • A Ni base superalloy columnar preform were produced through nitrogen spray atomization and deposition.
                  利用氮氣霧化噴射沉積技術(shù)成功地獲得了宇航用變形鎳基高溫合金柱形坯.
                • An experiment on a submunition dispenser with airbag and nitrogen generant was presented.
                  對以氮氣發(fā)生劑為拋撒藥的子彈藥氣囊拋撒裝置進(jìn)行實驗.
                • The plants keep the nitrogen in their roots , legum.
                  植物將氮氣保存在他們的根部.
                • This Permit will require all pipes and vessels to be purged with nitrogen before work commences.
                  工作許可證將要求在進(jìn)行作業(yè)前,對所有的設(shè)備和容器用氮氣進(jìn)行吹掃.
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