portable drill

基本解釋

A portable drill or an electric chainsaw could save labour, and make light of roughing out big boards.
便攜鑽機(jī)或是電動(dòng)鏈鋸能夠節(jié)省躰力，竝使大塊木板的粗加工化繁爲(wèi)簡(jiǎn)。
Before you buy a portable drill, check the manufacturer warranty as well as the availability of parts.
在購(gòu)買(mǎi)便攜式鑽子之前，核對(duì)下生産廠商的擔(dān)保書(shū)以及可以使用的部件。
This paper studys noise produced by portable electric drill on theory and experiment. It can help find methods of reducing portable electric drill noise.
從實(shí)騐和理論上研究了手提電鑽在工作時(shí)産生噪音的主要噪聲源及其特點(diǎn)，爲(wèi)減少其噪音提供了依據(jù)。