“瞬时”造句

在撞击过程中, 动量的变化是突然的,但非瞬时的.
In a crash, momentum changes abruptly but not instantaneously.

有时,在局部速度中可能出现瞬时脉动.
Sometimes temporal fluctuation may take place inthe local velocity.

它表示寻常光波前和非常光波前的瞬时轨迹.
It represents the instantaneous traces of the ordinary and extraordinary wavefronts.

• #瞬时