Natural gas is composed of methane ethane propane and butane.
天然气由甲烷、乙烷、丙烷和丁烷组成。
Liquids obtained during production of natural gas are known as natural gas liquids (NGLs) and include ethane, propane, butane and condensate, which comprises pentanes and heavier hydrocarbons.
在天然气生产中获得的液体，被称为液化天然气(液态天然气)，其中包括乙烷，丙烷，丁烷和凝析油，它包括戊烷重碳氢化合物。
The wet natural gas (moisture) also contain more ethane, propane, butane gas.
湿天然气(湿气)还含有较多的乙烷、丙烷、丁烷的气体。
For simple gas hydrate formation, the temperature and pressure of methane hydrate is highest, butane is lowest, and ethane and propane is between them.
对于纯气体形成水合物，甲烷形成的温压条件最高，丁烷最低，乙烷和丙烷介于二者之间。
The product of propane gas chromatography, second is the highest percentage of butane and isobutane is, the content of olefins are relatively low.
气相产物中丙烷的百分含量最高，其次是正丁烷和异丁烷；烯烃的含量均较低。
The product of propane gas chromatography, second is the highest percentage of butane and isobutane is, the content of olefins are relatively low.
气相产物中丙烷的百分含量最高，其次是正丁烷和异丁烷；烯烃的含量均较低。
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