短語詞組短語economical l operation 經(jīng)濟(jì)運(yùn)行safety and economical operation 安全經(jīng)濟(jì)運(yùn)行system economical operation 系統(tǒng)經(jīng)濟(jì)運(yùn)行systematic economical operation 系統(tǒng)經(jīng)濟(jì)運(yùn)行motor economical operation 電動(dòng)機(jī)經(jīng)濟(jì)運(yùn)行economical operation and management 經(jīng)濟(jì)運(yùn)行管理safe and economical operation 安全與經(jīng)濟(jì)運(yùn)行Hydropower Plant Economical Operation 水電廠經(jīng)濟(jì)運(yùn)行power grid economical operation 電網(wǎng)經(jīng)濟(jì)運(yùn)行 返回 economical operation