Spcc
[计] 计算机定点控制系统
🗣️ 情景例句
Have you been waiting for me for a long time?
你已经等我很久了吗？
Practice is better than precept.
身教胜于言教。
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
测出回声间隔的时间，便可算出该处海洋的深度。