gravitational tide

常见例句

雙語例句

• 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。

權威例句

• 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
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