gravitational tide
常见例句
- It is well known that the earth tide causes the temporal variations of gravitational field.
精密和詳細測定地球重力場及其時間變化，是目前衛星重力測量的主要課題。 - Tide: periodic rising and falling of large bodies of water resulting from the gravitational attraction of the moon and sun acting on the rotating earth.
UNESCO: L O S S A R Y 返回 gravitational tide