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。

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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。

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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。

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Even though natural-gas prices are slumping, drilling for gas also yields valuable liquids such as butane and propane.

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Some natural gas MLPs separate out liquids like propane and butane that compete against petroleum-based products like naphtha in the industrial chemicals market.

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