impulsive motion

• 脉动,抗动

impulsive motion的用法和样例：

例句

1. However, if its membership can be confirmed by proper motion and radial velocity determinations, the cause of light variation may not be pulsation.
   但是，如果自行或视线速度测定证实为其成员星，那么变光的原因也许不是脉动。