mean position的用法和樣例：
例句
- The gyro vertical utilizes a gyroscope as an integrating device to obtain the average position of a pendulous gravity reference.
垂直陀螺利用一個(gè)陀螺儀作為積分裝置以得搖擺不定的重力基準線(xiàn)的平均位置。 - Moving the ailerons out of their trimmed position causes the airplane to ratote and change attitude.
轉動(dòng)副翼離開(kāi)配平位置，致使飛機轉動(dòng)并改變姿態(tài)。
