常見例句雙語例句A portable drill or an electric chainsaw could save labour, and make light of roughing out big boards.便攜鉆機(jī)或是電動鏈鋸能夠節(jié)省體力，并使大塊木板的粗加工化繁為簡。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)驗(yàn)和理論上研究了手提電鉆在工作時(shí)產(chǎn)生噪音的主要噪聲源及其特點(diǎn)，為減少其噪音提供了依據(jù)。Mix the high infiltration epoxy ground coat and supplementary firming agent according to certain proportion and sir the mixture evenly with the portable electric drill.將高滲透環(huán)氧底漆和配套固化劑按比例混合，用手提電鉆攪勻。 返回 electric portable drill