Coal-to-liquid technology has a long history.

煤转油技术历史悠久。

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Thus oil depletion could mean that pollution and greenhouse gases rise yet further when coal-to-liquid based transport fuels are used as substitutes.

因此，石油的损耗不足意味着煤矿提炼的液体燃料将成为替代品，也就意味着污染和温室气体会进一步上升。

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This liquid is then used to heat water and cause it to turn into steam, which is used in a steam turbine, just like coal and oil plants.

就像用煤与油作烧料推动蒸汽机一样，该装置管内的高温液体将水加热成蒸汽，从而推动蒸汽机运转。

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Before passing its colossal energy bill last week, the Senate rejected coal-to-liquid fuel subsidies.

FORBES: Coal's Many Friends

It also includes tax incentives for renewable-energy producers, grants for the development of coal-to-liquid plants and investment in biofuels production.

FORBES: Magazine Article

The rail lobby is another powerful friend of coal-to-liquid fuels.

FORBES: Coal's Many Friends