字典網>> 英漢字典>> S開頭詞條>>speed reducer gearbox的意思 漢英字典speed reducer gearbox中文翻譯：【化】 減速箱; 減速齒輪箱英文字典相關詞條：speedup speed-increasing gear speed limit speedboat speed increaser speed-up speed inverter speed increase unit speed test cassette speed indicator