无论如何,同时地检测呼吸中的氧化一氮、一氧化碳、,过氧化氢物、亚硝酸盐、硝酸盐,、戊烷和乙烷,将能对哮喘做确定性的诊断。
However, simultaneously monitoring nitric oxide, carbon monoxide,hydro-peroxides, nitrites, nitrates, pentane and ethane in the breath, wouldallow a much more definitive diagnosis of asthma.
然后又会转化成加剧全球变暖的亚硝酸氧化物。
It is then converted to nitrous oxide which adds to global warming.
二氧化氮是硝酸盐气溶胶的主要来源,构成PM 2.5和在紫外线下臭氧的主要部分。
NO2 is the main source of nitrate aerosols, which form an important fraction of PM2.5 and, in the presence of ultraviolet light, of ozone.
好氧菌将氨先转化成氮氧化物再转化成硝酸盐。
Aerobic bacteria chew up the ammonia and turn it first into nitride and then to nitrate.
乳胶工业手套只适用于弱酸,浓度不高的硫酸和各种盐类,不得接触强氧化酸(硝酸等)。
Latex industrial gloves, apply only to weak acid concentration is not high sulfuric acid and various salts, have no contact with strong oxidizing acids (nitric acid, etc.).
可是它能够被浓氧化酸如浓硫酸、浓硝酸所腐蚀而且也不适用与芳香烃、氯化烃触摸的场合。
But it can be strong oxidizing acid such as sulfuric acid, nitric acid corrosion and is not applicable to the occasion of aromatics and chlorinated hydrocarbon touch.
亚硝酸酯与过氧化烷基反应,得到烷基硝酸酯。
Nitrous esters can react with alkyl peroxides to yield alkyl nitrates .
做出这种区别的原因可能是这些酸不象硝酸一样是氧化剂。
This distinction has probably been made because the acids are not oxidizers as is nitric acid.
同时用硝酸还原酶法测定肺动脉组织一氧化氮(NO)含量。
Nitric oxide (NO) content in pulmonary tissues was determined using nitrate enzyme reduction method.
用硫酸—过氧化氢和硝酸—高氯酸分别对有机—无机复混肥料进行消化处理,然后进行总钾含量的测定。
Organo mineral compound fertilizers are digested with sulfuric acid hydrogen peroxide and nitric acid perchloric acid respectively and then their total potassium content is determined.
大量实验证明以风化煤为原料采用硝酸氧化降解后再磺化的方法生产混凝土减水剂的工艺是合理的。
The experiments have shown that the technology of oxidation degradation with nitric acid and sulfoxidation with sodium sulphite to produce water-reducer of cement with decomposed coal is available.
硝酸盐真的对心脏健康和免疫功能有好处,能和胃里的酸反应产生一氧化氮,对心血管有好处。
Nitrates are actually beneficial to our heart health and immune function, and react to the acid in our stomach, forming nitric oxide, which promotes good cardiovascular function.
硝酸溶液(HNO3)是氧化性酸(去除材料表面的电子),它可以腐蚀材料。
Nitric acid solution (HNO3), is an oxidizing acid (depletes electron from the metal surface) which erodes the metal.
采用732型阳离子交换树脂分离镍及其它阳离子后,分别用氢氧化钠和硝酸银滴定硼酸和氯离子。
Type 732 cation exchange resin was added in nickel bath to separate nickel ions and other cations, boric acid and chloride ions were then separately titrated by sodium hydroxide and silver nitrate.
用硝酸氧化能使ha中羧基含量增加,酚羟基减少,酸性功能团活性提高。
The-COOH contents in HA increases, phenolic-OH group decreases and the chemical acidity of acidic functional groups increases when HA is oxidized by nitric acid.
其中一个办法,准备氧化镍是从硝酸盐。
One of the many ways to prepare nickel oxide is to start from the nitrate.
前言: 简要介绍以五氧化二氮为硝化剂制备硝酸酯的“绿色”硝化反应的类型、工艺及特点。
The types, technology and characteristics of the "green" nitration for preparing nitric esters using dinitrogen pentoxide as the nitrating agent were introduced.
目前对高砷硫金矿的预处理方法主要有氧化焙烧法、加压氧化法、细菌氧化法、硝酸分解法、真空脱砷法等。
There are many ways of pretreatment to high arsenic gold concentrate such as roasting, pressure oxidation, bacterium oxidation, decomposition by nitric acid, eliminating arsenic in vacuum, etc.
简要介绍以五氧化二氮为硝化剂制备硝酸酯的“绿色”硝化反应的类型、工艺及特点。
The types, technology and characteristics of the "green" nitration for preparing nitric esters using dinitrogen pentoxide as the nitrating agent were introduced.
活性炭载体经浓硝酸氧化处理后能明显提高负载型钯催化剂的催化活性和催化稳定性。
The catalytic stability and activity of supported palladium in hydrodechlorination were improved when the activated carbon supports were pretreated with concentrated nitric acid.
接触强氧化酸如硝酸、铬酸等,因强氧化作用会造成产品发脆、变色、早期损坏。
Contact with strong oxidizing acids such as nitric acid, chromic acid and so on, due to strong oxidation products will cause brittle hair, discoloration, early damage.
对聚氧化乙烯(peo)为粘合剂硝酸酯增塑的高能推进剂配方力学性能进行了研究。
The mechanical properties of propellants formulation, which contains PEO binder and is plasticized by nitrate ester were studied.
采用空气氧化预处理、硝酸氧化预处理、超声波预处理三种方法提高腐殖酸的提取率。
Three pretreatments including air oxidation pretreatment, nitric acid oxidation pretreatment, ultrasonic pretreatment are used to increase the rate of humic acid extraction.
硝酸跟金属、非金属发生氧化还原反应的历程是怎样进行的?
How does the mechanism of oxidation and reduction reaction proceed between nitric with metal and nonmetal?
认为国内应大力开发乙醛硝酸氧化法生产乙二醛的工艺,目前的迫切任务是提高产量与产品质量。
It was thought that the new process for producing glyoxal by oxidizing acetaldehyde with nitric acid should be developed inland, and the urgent task was increasing yield and quality.
研究结果证明,硝酸钠对铈的氧化作用是显著的。
It shows that the oxygenation of the sodium nitrate is obvious to cerium.
由硝酸与钙盐(氧化物,碳酸盐或氢氧化物)反应生成。
It is formed by reacting nitric acid with a calcium salt (oxide, carbonate or hydroxide).
由硝酸与钙盐(氧化物,碳酸盐或氢氧化物)反应生成。
It is formed by reacting nitric acid with a calcium salt (oxide, carbonate or hydroxide).
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