Echoranging
回声测距法
🗣️ 情景例句
and wait for the final results.
等待最后的结果。
The raceis got by running.
赛跑要靠奔跑来赢得。
If explosives are used, vibrations will cause the roof of the mine to collapse.
如果用炸药爆破，震动会引起矿顶塌落。