plate motion的用法和樣例：
例句
- If this were not the case,the Earth would be covered by a single spherical plate,and no relative plate motion could occur.
如果不是這種情況，地球就會被一個單獨的球狀板塊所覆蓋，並且不會有相對的板塊運動發生。 - Geologists describe the motion of the plates and the consequences of such motion as plate tectonics.
地質學家把板塊運動及這種運動所造成的後果看作是板塊構造運動。
