Gravity drop hammer是什么意思

中文翻译自落鎚

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1)Gravity drop hammer,自落鎚2)Hammer,gravity drop,自落鎚3)air-lift gravity drop hammer,气提自落鎚4)Hammer,air-lift gravity drop,气提自落鎚5)Falling type by oneself,自落式6)free-fall mixers,自落式搅拌机7)automatic dropdown oxygen mask,自落式氧气面罩8)free-fall rocket core sampler,(自落)推进上浮取样管9)rotating concrete mixer,自落式混凝土搅拌机10)biconical gravity concrete mixer,双锥自落式混凝土搅拌机

Gravity drop hammer是什么意思

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