O 開頭單詞
overhead transmission line [電] 架空輸電線；高架輸電線路
overhead transmission gear 架空傳動(dòng)裝置
overhead traffic light signal [政治學(xué)]架空交通燈
overhead telecommunication line [土木建築工程]架空電訊線路
overhead system 架空系統(tǒng)
overhead stacking crane [機(jī)械工程]橋式堆垛起重機(jī)
overhead spending variance [經(jīng)濟(jì)學(xué)]間接費(fèi)耗用差異間接費(fèi)用開支差異
overhead road [交] 高架道路
overhead railway 高架鉄路，架空鉄道
overhead projector n. 高射投影儀
overhead process camera [經(jīng)濟(jì)學(xué)]上梁式攝影機(jī)
overhead power transmission line [電子、通信與自動(dòng)控制技術(shù)]架空輸電線路[交通運(yùn)輸工程]架空電力線
overhead power transmission [動(dòng)力與電氣工程]架空輸電
overhead power line fitting [動(dòng)力與電氣工程]線路金具
overhead power line 架空電力線路
overhead line 架空線路；架空琯道
overhead light 頂燈，高架照明燈