Coal, by contrast, is associated with a much smaller methane release during mining; but burning it produces about twice as much CO2 as burning natural gas.

与之相反，在煤炭的开采中甲烷释放要少的多；但燃烧煤炭所产生的CO2比燃烧天然气所释放的CO2多出2倍。

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Coal contains less energy per unit of weight than weight than natural gas or oil; it is difficult to transport, and it is associated with a host of environmental issues, among them acid rain.

煤的单位能量含量低于石油和天然气，而且会导致包括酸雨在内的一系列环境问题。

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The project involves the exploration, development, production, marketing, and sales of natural gas, oil and associated condensate from the contract areas.

这一项目包括在合同区内对天然气、石油和凝析油进行勘探、开发、生产、市场开发和销售。

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Anderson had already put Panenergy through that transformation by acquiring Associated Natural Gas, a trading company, two years before.

FORBES: Trading places

Anderson had already put Panenergy through that transformation by acquiring Associated Natural Gas, a Denver trading company, two years before.

FORBES: Trading Places

Onshore natural gas transmission compression means any combination of compressors and associated equipment involved in moving natural gas from production fields or natural gas processing plants through transmission pipelines to natural gas distribution pipelines and storage facilities.

FORBES: Just Tell the "Fracking" Truth