The amount of water in the ocean would have formed the equivalent of a 1, 800 foot layer spread out over the entire planet.

如果将海洋所含总水量在火星表面铺展开，相当于给其表面铺了一层厚达1800英尺的水层。

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Nowadays, a great rail-mounted combine chews away at a 10-foot-thick layer of salt in the old seabed, before it is towed 11 miles back to the plant, and washed and ground.

现今，一条配有长长铁轨的联合开采机不断啃噬着旧海床10英尺厚的盐层，直到它被推行11英里回到盐厂进行清洗和沉淀。

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Around the same time, a massive volcanic eruption in the Wrangell Mountains in Alaska occurred, blanketing the area in a layer of ash, up to a foot deep, called the White River tephra.

大致在同一时期，阿拉斯加州的弗兰格尔山脉出现了大规模的火山爆发，这个地区遂被深达一英尺的怀特河火山灰所覆盖。

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Like Tahiti, its drilling involved piercing an 11, 000-foot layer of sedimentary salt.

FORBES: On The Cover/Top Stories

In 1760, a young aristocrat from the scarp-foot village of Wiston named Charles Goring decided to add his own layer of history to the Chanctonbury earthworks.

BBC: England��s ghostly South Downs Way

The wide-ranging storm buried parts of the Midwest under more than a foot of snow, weakening as it moved east but still carpeting lawns and fields in a fresh layer of white.

WSJ: Storm blasts East with snow, cold; warmer Tuesday