pressure-controlled ventilation 基本例句 压力控制 In balancing operation the system works in force and pressure control.在平衡操作中这个系统工作在轧制力和压力控制状态。 The pressure control systems provide cabin differential pressure by controlling the outflow of air from the faselage.压力控制系统通过控制机外气流来提供客舱压力差。