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来源:雅诚德英语网
Gas emits about half as much carbon dioxide as coal per unit of energy produced.
天然气的二氧化碳产生量是每单位煤炭释放能量时二氧化碳产生量的一半。
Gas emits about half as much carbon dioxide as coal per unit of energy produced.
天然气的二氧化碳产生量是每单位煤炭释放能量时二氧化碳产生量的一半。