Each tower serves an area of approximately 3 sq km.

每个基站的服务范围大概是3平方公里。

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Between 2000 and 2005 it lost 351,000 sq km of forest, mostly to fire and pests.

2000年到2005年之间，351,000平方千米的森林消失，大部分是因为燃烧和虫害。

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Between 2002 and 2009 Brazil committed 709, 000 sq km of the Amazon to such use.

2002到2009年间，巴西将亚马逊雨林709,000平方公里定为此用。

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The analysis produced a summer Arctic sea-ice minimum extent of 6.9 million sq km.

BBC: Earliest satellite maps of Antarctic and Arctic sea-ice

The Northeast Ecological Corridor comprises 14 sq km (5.4 sq miles) of the island's coast.

BBC: New law to protect Puerto Rico leatherback turtles

That compared with the 2007 minimum of 4.1 million sq km (1.6 million sq miles).

BBC: Arctic team targets key ice data