有奖纠错
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Fracture motorbicycle piston was analysed by means of chemical composition analysis, hardness testing, metallographic examination, and the macro and micro-fractography analysis.

摘要学成分分析、硬度测定、金相检验以断口宏、微观分析等方法,对断裂的活塞进行了分析。

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Hoover, Hoover Dam, Hooverize, Hoovers, Hooverville, hooves, hop, hopance, hopane, hoparon,

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3G, 401(K), a,

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英语初级听力

I sat down and admired the view. After a time I heard a motorbicycle start up and I saw the paperman riding off and, as I watched, I saw Mrs. N come out from behind the Mill.

我听一辆启动, 我看骑走, 当我注视时, 我看 N 夫从磨坊后面出来。

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hopeite, hopeless, hopelessly, hopely, Hoperstad Stavechurch, hopes, Hopewell, hopfnerite, hophead, hophornbeam,

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3G, 401(K), a,
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