time calculation的用法和樣例：
例句
- Select the hierarchy of the time dimension to be used to create the new time calculations.
選擇要用來創建新時間計算的時間維度的層次結構。 - Under the spherical coordinate, the tsunami propagation model is built to simulate the transoceanic-tsunami travel time by finite difference method.
本文基於強震台網提供的地震要素，從理論上討論海嘯預警時間計算方法。
