Study after study shows that the price of combat aircraft has been rising substantially faster than inflation, often faster than GDP.

不断有研究表明，战斗机的价格增速已经远远超过通货膨胀的速度，而通货膨胀的速度又常常大于GDP增长的速度。

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Concerns about aircraft safety during the eruption of an Icelandic volcano in 2010 were well founded, according to a new scientific study.

通过一项新的的科学研究成果，在2010年冰岛的一座火山喷发期间的飞行器安全问题已经得到关注。

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As planes push cloud temperatures past the tipping point at which supercooled water freezes, the aircraft "seed" the clouds with ice particles, the study says.

研究者称，飞机飞行将云温推至临界点以下，为那些过冷的液态水提供了云形成的冰颗粒，使其凝聚冻结。

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"On one hand, these results are in agreement with our findings from the West London School Study where aircraft noise exposure around Heathrow airport was weakly associated with mental health problems, " she said.

BBC: Traffic noise 'harms' child health

Dr Douglas-Hamilton's collars, however, simply record their data in memory chips until those chips are prompted to regurgitate their contents to a receiver on board an aircraft that flies over the study area once every few months.

ECONOMIST: Elephant behaviour

Importantly, many of the problems cited in the GAO study arise from the inappropriate evaluation of Block 10 aircraft against Block 30 standards they are not expected to be meeting at this point.

CENTERFORSECURITYPOLICY: Center for Security Policy | SUMMARY OF THE CENTER FOR SECURITY POLICY��S SECOND HIGH-LEVEL ROUNDTABLE ON THE FUTURE OF THE MANNED BOMBER FORCE