This sonar can scan thousands of square kilometres of the shallow-shelf seas at one time and see schools of fish moving within them.

这种声纳能一次扫描几千平方公里的浅海区，发现其中的鱼群。

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"Although the study is based on plant life in Scotland, our models apply across regions spanning hundreds of thousands of square kilometres," said Clark.

“虽然此项研究是以苏格兰植物生活为基础，但是我们的模式适用于跨越数十万平方公里的地区。”克拉克说。

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And, if the enemy ventured to invade his territory, Peter had another asset – thousands of square kilometres of inhospitable terrain under snow for several months of the year.

而如果他的敌人敢于尝试入侵他的领土，彼得还有另外一个优势——数千平方公里每年数月处于冰雪覆盖下的不宜居住地区。

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The discovery is more like damp rock: a mixture of 1% ice and 99% regolith, spread over thousands of square kilometres at the poles.

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The new version will still flood a lot of forest: a reservoir of 516 square kilometres (200 square miles) will leave scores of villages awash and force thousands from their homes.

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