pushuo扑朔pushv.推；按；挤；逼迫；催促n.推；奋力；决心push-pull maneuver推拉动作push-pull port tug推拖两用港作船push-pull voltages推挽电压push oneself forward突出自己pushing construction顶推施工pushing water coning压水脊push-pull coupling推挽偶联Push - Pull Theory推拉理论push-button system按钮制Push bench pipe mill顶管机组