向前凸出...

pull forward的音标：pull forward的英式发音音标为：[pul 'fɔ:wəd]pull forward的美式发音音标为：[pʊl 'fɔrwəd]...

Pull forward, breathe forward, land forward and kick forward.向前划水, 向前呼吸,向前入水, 向前踢腿.It comprises of a push - pull forward converter and a dual buck inverter.主电路采用推挽正激变换器和双降压式逆变器.The first stage is push pull forward conver...