Even one gas molecule can break a silicon-oxygen bond in glass, generating a defect, said Carlo G. Pantano, a professor of materials science at Pennsylvania State University.

“一个气体分子就可以破坏玻璃的硅氧键，并诱生一个缺陷。”Pennsylvania州立大学的材料科学教授CarloG . Pantano说。

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But the year ended with a record-break in g December, as people bought consoles and games for Christmas.

但是由于圣诞节期间人们购买游戏机和电玩游戏，2009年12月份的销量创造了历史新高。

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Surveys of customers by Consumer Reports show that G. M. cars break down more often than Japanese cars.

消费者报道(Consumer Reports)对消费者做的的一个调查表明，通用生产的汽车比日本车更容易发生故障。

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Surveys of customers by Consumer Reports show that G. M. cars break down more often than Japanese cars.

消费者报道(Consumer Reports)对消费者做的的一个调查表明，通用生产的汽车比日本车更容易发生故障。

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