critical moment的用法和樣例：
例句
- A variable pitching moment is provided by moving the elevator.
俯仰力矩的變化由升降舵的偏轉來提供。 - The aerodynamic forces on any control surface produce a moment about the hinge.
在任何操縱面上的空氣動力均產生圍繞其鉸鏈軸的力矩。 - Our struggle has reached a decisive moment.
我們的鬥爭已到了決定性時刻。 - And that was probably the decisive moment for this theory.
這可能是這個理論的決定性時刻。
