Mr Baby, and thousands like him, are scouring America's shale beds.

有成千上万的工人和他一样，在美国的各个页岩层发掘。

This week America's Energy Information Administration (EIA) released new estimates of the amount of gas in the world's shale beds.

本周，美国能源信息署发布了最新的全球页岩气储量预测。

The most significant export, however, could be the transfer of American know-how to exploiters of the world's abundant shale beds.

这样大量的出口可能将美国的开发技术传向全世界，使页岩气开发更为普遍。

Companies dig down and fracture shale beds to release natural gas.

那些公司挖开页岩床释放天然气。

This process uses water, sand and chemicals under pressure, together with horizontal drilling through the shale beds, to release vast quantities of gas and oil from impermeable rocks that are deep underground.

该程序在压力下采用水平钻孔将水、沙子和化学物品打入页岩层，从而从不能渗透的深地岩石中发掘大量的气和油。