全部

1·Methane and propane are alkanes.

甲烷和丙烷是烷烃。《牛津词典》

2·Such alkanes are the main ingredients of diesel fuel.

这种烷烃是柴油的主要成分。

3·Alkanes are resistant to attack by oxidizing agents generally.

烷烃一般对于氧化剂的作用是稳定的。

4·The general USES of alkanes may be divided into three categories.

烷的一般用途可分为三个方面。

5·Soluble alkanes, fats, mineral oil, paraffin and most organic solvents.

溶于烷烃，脂肪，矿物油，石蜡及大多数有机溶剂。

6·The straight - chain alkanes exacerbate the problem of engine knock .

直链烷烃使机器的“ 爆震” 问题更加严重。

7·Other components are the homologous alkanes ethane propane and higher hydrocarbons.

其他组分有同系烷、乙烷、丙烷以及高分子碳氢化合物。

8·Other components are the homologous alkanes, ethane, propane, and higher hydrocarbons.

其他组分有同系烷、乙烷、丙烷以及高分子碳氢化合物。

9·The bacteria secrete the alkanes, which can then by easily collected and used as a fuel.

改造过的细菌能分泌烷类，很容易被收集并可以用作燃料。

10·Ethylene can also be turned into alkanes, a class of hydrocarbons that are a component of gasoline.

乙烯还可以转变成烷烃——是石油中含有的一种碳氢化合物。

链烷烃

1·The degree of hydrocarbon evolution increases with depth, which is accompanied by demethylation of alkanes, ring opening of cycloalkanes, aromatization and heightening alkylating degree.

随着演化程度加深，链烷烃脱甲基、环烷烃开环作用、芳构化作用和烷基化程度不断提高。

2·Biodegradation ways, mechanism and kinetics of alkanes, cyclanes and arenes are reviewed, and the influences of temperature, nutrients, oxygen and salinity on biodegradation are analyzed.

综述了微生物对链烷烃、环烷烃和芳香烃的降解途径、机理和降解动力学，分析了温度、营养物质、氧及盐度等非生物因素对降解作用的影响。

烷类

1·For example, the E. coli naturally feeds on some of the fatty acids it produces, rather than using them as a feedstock for producing alkanes.

例如，大肠杆菌以其自身合成的一些脂肪酸为食，而不是以它们为原料来生产烷类。