汽油成分对排放有较为显著的影响，特别是在现代汽车普遍安装三元催化器后，控制汽油成分就显得尤其重要了。
The petrol composition influent emission of the engine markedly. It is especially important to control petrol composition particularly after three way conversion catalyst were installed in modern car.
尽管原油是汽油的主要成分，而在谷类食品，脆薄饼和饼干的生产过程中，只需要使用非常少量的谷物，小麦和其他原材料，限制了制造商对价格的控制。
Though crude oil is the main ingredient of gasoline, processed foods like cereal, crackers or cookies use only a small amount of corn, wheat and other grains, limiting manufacturers' pricing power.
问：既然氮氧化物是烟尘成分的一种，也是常见的水污染物，那加氮汽油会不会产生额外的污染呢？
Q: Since nitrogen oxide compounds are components of smog and are common water pollutants, does nitrogen-enriched gasoline create additional pollution?
既然氮氧化物是烟尘成分的一种，也是常见的水污染物，那加氮汽油会不会产生额外的污染呢？
Since nitrogen oxide compounds are components of smog and are common water pollutants, does nitrogen-enriched gasoline create additional pollution?
铼可以用来制造喷气式发动机的耐高温合金部件，也是高能量的无铅汽油的成分。
Rhenium is used to make high-temperature alloys for jet engine parts and in high-octane, lead-free gasoline.
我们的主要矿物燃料包括——煤，石油和汽油——他们的组成成分都包括碳，它已经在我们的地球积压了数百万年，我们现在将它使用和燃烧，让它快速的归还到大气中。
Our main fossil fuels — coal, petroleum and gasoline — are made up of carbon that has been compressed in the Earth for millions of years and we're now burning and rapidly restoring to the atmosphere.
正像其附近的另外两家公司一样，他现在将克迪科思公司的注意力集中到与汽油分子的化学成分更相似的分子上去。
Like two other, nearby firms, he is now focusing Codexis's attention on molecules even more chemically similar to petrol.
结果各样品中易挥发的主要成分为甲苯、丁酮、汽油、醋酸乙酯、丙酮等，其急性毒性分级均为低毒。
Results Those samples ingredients easy to volatilize were mainly toluene, butanone, gasoline, ethyl acetate, acetone, etc. All of them were rated as low toxic for their acute toxicity.
本文介绍一种以有机钡盐为主的复合型柴油添加剂，其主要成分是过氧化钡与环烷酸在焦化汽油中反应所生成的环烷酸钡。
The smoke suppressing effect of organic barium salt, a product of the reaction between barium bioxide and naphthenic acid in coking gasoline, as a diesel oil additive was studied.
汽油中的杂质是形成积碳的主要成分，所以清洁度高的汽油形成积碳的趋势就弱一些。
The impurity in the gasoline is to form the main components of carbon, so cleanliness higher gasoline form carbon trend is weak some.
目的：通过研究燃汽油机动车尾气成分，及其对DNA分子的氧化损伤，在分子生物学水平上探讨燃汽油机动车尾气污染物的遗传毒性效应与机制。
Objective: the genotoxicity and its molecular mechanism of gasoline vehicle exhaust were studied through examining exhaust components and the oxidative DNA damage induced by them.
气体燃料不同于汽油和柴油等传统的内燃机燃料，不同点在燃料的组成成分，化学物性以及燃烧特性等特性。
Fuel components, chemical properties and combustion characteristics of gas fuels are different from those of gasoline, diesel and other traditional liquid fuels for internal combustion engine.
采用毛细管气相色谱将汽油试样做单体烃组成分析。
The hydrocarbon composition of gasoline has been analyzed by automatic capillary chromatography.
提出一种用于汽油机爆震预测的简化自燃模型，该模型由13种成分、20个反应组成。
A reduced chemical kinetic model for knock prediction is developed. It includes 13 active species and 20 reactions.
目的：通过研究燃汽油机动车尾气成分，及其对DNA分子的氧化损伤，在分子生物学水平上探讨燃汽油机动车尾气污染物的遗传毒性效应与机制。
Objective the genotoxicity and its molecular mechanism of diesel oil vehicle exhaust were discussed through analysing the oxidative DNA damage induced by exhaust components.
目的：通过研究燃汽油机动车尾气成分，及其对DNA分子的氧化损伤，在分子生物学水平上探讨燃汽油机动车尾气污染物的遗传毒性效应与机制。
Objective the genotoxicity and its molecular mechanism of diesel oil vehicle exhaust were discussed through analysing the oxidative DNA damage induced by exhaust components.
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