短語(yǔ)詞組短語(yǔ)exhaust fan main shaft 風(fēng)機(jī)主軸fan efficiency shaft gear 風(fēng)扇軸驅(qū)動(dòng)齒輪fan main shaft 風(fēng)機(jī)主軸fan n shaft 通風(fēng)井fan efficiency shaft 扇風(fēng)機(jī)井fan turbine shaft 風(fēng)扇渦輪軸fan cardan shaft 風(fēng)扇萬(wàn)向軸Heung Fan Liu Shaft 香粉寮豎井fan maim shaft 風(fēng)機(jī)主軸 返回 fan shaft