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

1.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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biosystematy, biot, biota, biotaxis, biotaxy, biotech, biotechnical, biotechnics, biotechnology, biotechology,

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3G, 401(K), a,

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英语初级听力

1.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。机翻

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biotic, biotic community, biotical, biotic-control, biotics, biotin, biotine, biotinsulfone, biotin-sulfone, biotite,

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3G, 401(K), a,
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