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planetary piston engine crankcase
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planetary piston engine crankcase
[作业 运输] 行星齿轮的活塞式发动机曲轴箱; 运动活塞发动机曲柄轴箱; 轨道活塞引擎曲轴箱
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social security card
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英汉翻译词典包含4368284条英汉汉英翻译词条,基本涵盖了全部常用英语单词及常用语的翻译及用法,是英语学习的有利工具。
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更新时间:2025/10/29 6:36:52