rectilinear motion

• 直线运动

rectilinear motion的用法和样例：

例句

1. The tendency of a body in motion to continue in motion along a straight line is known as inertia.
   运动物体继续作直线运动的倾向叫惯性。
2. The simplest form of wave motion consists of the combination of a transverse simple harmonic vibration and a uniform translation.
   波动的最简单形式是横向简谐振动和匀速直线运动的组合。