directional gyroscope的用法和樣例：
例句
- He also tested the first rocket controlled by a gyroscope.
他還試驗了第一枚用陀螺儀控制的火箭。 - This paper is a experimental report about Characteristics of the tracking rates of the gas-dynamic free rotor gyroscope.
本文是有關動壓氣浮自由轉子陀螺儀的跟蹤速率特性的實驗總結報告。 - The gyroscope compass makes the vessels keep on the fixed course voluntarily.
陀螺羅盤自動使船隻保持在預定的航線上。
