Nasa scientists had anticipated that the impact would throw up a six-mile-high cloud of lunar dust and rock which could be scanned for evidence of frozen water.

美国航天局的科学家曾希望这个撞击会抛起六英里高的月球尘埃和碎片云，通过对其扫描，可以找到结冰水的证据。

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Scientists believe the crater may contain frozen water and expected it to be kicked up by the impact.

科学家相信这陨坑存有结冰水，希望通过撞击可以被掀起。

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The results show that the impact toughness of frozen silt increases in nonlinear with the increase of pendulum impulse.

试验结果发现冻土的冲击韧度随冲量的增加而呈非线性增加趋势。

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Those who have had their awards withdrawn do not receive annual pay rises so the NHS can start to claw back some of the money, but as pay is currently frozen, that is having little impact.

BBC: Call to abolish NHS 'lifetime bonuses' for consultants

"We will be watching closely to see if this has any positive impact for new and growing businesses, which have largely been frozen out of the market for finance in recent years, " said BCC policy director Adam Marshall.

BBC: Funding for Lending scheme aims to cut loan costs