国外专家根据统计参数数学预测，认为21世纪煤层瓦斯将取代石油成为主要能源，世界将进入煤层气与天然气能源的经济时代。
As a energy resource, coalbed gas would replace oil to be the main energy with natural gas in 21st century.
国外专家根据统计参数数学预测，认为21世纪煤层瓦斯将取代石油成为主要能源，世界将进入煤层气与天然气能源的经济时代。
As a energy resource, coalbed gas would replace oil to be the main energy with natural gas in 21st century.
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