短语词组短語Heartbeat failure detector 心跳故障檢測器Irregular heartbeat detector 可進行心率不齊探測;心率不齊探測器Ultrasonic Doppler foetal heartbeat detector 超聲多普勒胎兒心率儀trasonic Doppler foetal heartbeat detector 超聲多普勒胎兒心率儀 返回 heartbeat detector