The answer: wells that drill vertically down to the shale bed, then make a gradual 90-degree horizontal turn through the shale deposit.

目前，科学家提出了解决方案——先垂直钻探至页岩床位置，然后以90度水平地钻探页岩沉积层。

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Picasso and the poet Max jacob , down but not quite out in Paris, shared a bed in turn.

潦而不倒的毕加索和诗人马克斯·雅科布曾在巴黎轮流共睡一张床。

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Picasso and the poet Max jacob , down but not quite out in Paris, shared a bed in turn.

潦而不倒的毕加索和诗人马克斯·雅科布曾在巴黎轮流共睡一张床。

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