Vft
abbr. Voice-Frequency Telegraph 音频电报
🗣️ 情景例句
Do you understand?
你明白吗？
Who would you name as the greatest poet of our time?
你认为当代最伟大的诗人是谁？
and we control it by means of the mud which we circulate down the drill pipe.
我们让泥浆顺着钻杆向下循环，用这种方法来控制压力。