They cover an area of 40 square miles and are perfectly white.

这片盐沼佔地40平方英里，洁白如雪。

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In a typical mission, the photographic camera can cover an area of up to 1,700 square kilometres.

在一个典型任务中，照相机能覆盖1,700平方公里区域。

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Grasslands in China cover an area of 400 million ha, stretching more than 3,000 km from the northeast to the southwest.

中国的草地面积约40000万公顷。

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The turbines would cover an area of sea similar in size to the Isle of Wight.

BBC: Consultation starts on wind farm off Devon coast

Officers with South Yorkshire Police cover an area of 600 square miles (1, 554 sq km).

BBC: Shaun Wright

Rows of parabolic troughs 50-60m wide will cover an area of 130, 000 sq m.

BBC: RELATED BBC SITES