orbit motion的用法和樣例：
例句
用作名詞 (n.)
- This motion of an object in an orbit about a center is called revolution.
像這種一個(gè)物體環(huán)繞某個(gè)中心所作的軌道運動(dòng)叫做公轉。 - The magnetic fields produced by the orbital motions of the electrons in filled shells also cancel in pairs.
滿(mǎn)殼層中電子的軌道運動(dòng)所產(chǎn)生的磁場(chǎng)也被成對地抵消了。
