quieter motor 中文意思是什麼
quieter motor
解釋
無噪聲馬達-
The railway companies have embarked on noise abatement programmes. they have carried out regular rail and wheel grinding, installed wheel dampers, replaced motor alternators with quieter alternative and erected track - side barriers at locations close to residential areas
各鐵路公司已實施噪音消減計劃,包括定期打磨路軌和車輪加裝車輪減震器換上更寧靜的電動交流發電機,以及在鐵路沿線住宅區加設隔音屏障。
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