velocity changing的用法和樣例：
例句
- He found the small town changing at an astonishing speed.
他發(fā)現那個(gè)小城正以驚人的速度變化著(zhù)。 - The application of a pressure difference across an injector does not cause an immediate velocity response of the liquid propellant.
經(jīng)過(guò)噴注器的壓降發(fā)生變化時(shí)并不馬上引起液體推進(jìn)劑速度變化。
