实际上在十年前，美国所有的天然气开采公司，不是采用传统方式，就是利用垂直钻井开采。
Ten years ago virtually all of America's natural-gas production came from traditional gas or oil Wells reached by vertical drills.
实际上在十年前，美国所有的天然气开采公司，不是采用传统方式，就是利用垂直钻井开采。
Ten years ago virtually all of America's natural-gas production came from traditional gas or oil Wells reached by vertical drills.
应用推荐