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请输入英文单字，中文词皆可：

jackhammer    音标拼音: [dʒ'ækh,æmɚ]
n. 手提钻

手提钻

jackhammer
n 1: a hammer driven by compressed air [synonym: {air hammer},
{jackhammer}, {pneumatic hammer}]

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  • Water Spray Control of Hazardous Dust When Breaking Concrete with a . . .
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    Construction workers are exposed to hazardous dust when using jackhammers to break concrete pavement NIOSH found that exposures could be reduced by using a water-spray attachment
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