烯烃：含有一对或多对由双键连接的碳原子的一类不饱和烃。
Olefin (or alkene) Any unsaturated hydrocarbon containing one or more pairs of carbon atoms linked by a double Bond (see covalent Bond, saturation).
烃是一类最重要的有机化合物。
Hydrocarbons are among the most important organic compounds.
结果表明，炼油厂生化曝气池对酚类及芳烃类化合物的去除效果较好，而长链脂肪烃的去除率相对较低；
The results showed that the removal efficiencies of phenols and aromatic compounds are high, whereas those of aliphatic hydrocarbons are low by the biochemical aeration process in the refinery.
合成科学，第6类： 具全碳功能的化合物，第43卷：聚块烃、芳块、烯块与块（高价丛书）
Science of Synthesis: Houben-Weyl Methods of Molecular Transformations: Category 6: Compounds with All-Carbon Functions , Volume 43: Polyynes, Arynes, Enynes, and Alkynes.
卤代烃是一类重要的有机化合物，在化学工业、农业、材料、环保及现代有机合成中有着广泛的应用。
Halohydrocarbon is one of the most important organic compounds and widely used in chemical industry, agriculture, material, environmental protection and modern organic synthesis.
轮胎生产企业排放的废气，含有碳黑、非甲烷总烃、H2S及其他恶臭类有机气态污染物，难于处理。
Its very difficult to dispose the exhaust gas discharged by tyre manufacturers, which contains carbon black, NMHC, H2S and odor organic gaseous pollutants.
区内石炭—二叠纪煤系具有良好的煤型气及一定的煤层气潜力，中、下侏罗统和下白垩统暗色泥岩类是最具生油潜力的烃源岩系。
Permo Carboniferous coal series have relative good coal gas potential, dark mudstones in lower Jurassic, lower part of Middle Jurassic and lower Cretaceous are the best source rocks.
卤代烃是一类高效金属除油清洗剂。
这些特征均表明疑源类是鄂尔多斯盆地三叠系延长组湖相优质烃源岩形成的重要母质。
The lacustrine acritarch is the important biologic source of high-quality source rock of the Yanchang Formation in Ordos Basin.
根据分子地球化学指标，下侏罗统和中侏罗统烃源岩都可划分为湖相和沼泽相两类。
In terms of molecular geochemistry indexes, the hydrocarbon source rocks both in lower Jurassic and middle Jurassic can be classified as lake facies and swamp facies.
首先，对雪里蕻腌菜卤汁的乙醚萃取浓缩液组分进行了鉴定，结果发现有机酸组分8个，醇类组分4个，腈类组分2个，酯类组分1个，芳香烃2个。
The constituents from pickle brine extracted with ethyl ether and identified by GC MS. In the result, 8 acids, 4 alcohol, 2 nitriles, 2benzines and 1 ester were identified.
第二类原油主要来源于二叠系风城组烃源岩。
The other one comes mainly from Fengcheng group source rocks of Permian.
蜂蜡与其他植物蜡、矿物蜡、脂肪酸、脂肪醇、甘油脂、烃及合成蜡等几乎所有的蜡类及油脂产品都有良好的相溶性。
Beeswax and other plant wax, mineral wax, fatty acids, fatty alcohol, glycerin, hydrocarbons and synthetic waxes such as almost all of the waxes and grease products have good compatibility.
由于石油的主要成分包括饱和烃、芳香烃类化合物、沥青质、树脂类等，这些物质难以降解，并且对水生生物有毒杀作用。
The main components of oil are saturated hydrocarbons, aromatic compounds, asphaltenes, resins, and so on. It is difficult to degrade these substances which are bad for aquatic life.
本发明不含苯类、酚类芳烃，卤代烃等有毒溶剂，以水为溶剂。
The cleaning agent USES water as a solvent instead of toxic solvent such as benzenes, phenol aromatic hydrocarbons and halogenated hydrocarbon.
烃是一类新型的主客体化合物。
烃是一类新型的主客体化合物。
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