echo time

• 回波时间(磁共振用语)； 回声时间

echo time的用法和样例：

例句

1. The return of the echo will elapse longer time.
   回声返回所耗的时间越长了。
2. The depth of the sea at that point can be calculated by measuring the time interval between the taps and the return of the echoes.
   在船体上轻轻敲击的声响会从海底反射回来，通过测量敲击和收到回声之间的时间间隔，可以计算出该处海洋的深度。