directional-control gyroscope
...陀螺半罗盘 azimuth gyroscope; bird cage; directional displacement gyroscope; directional gyro compass; directional gyro indicator; directional gyrocompass; directional gyroscope; directional-control gyroscope; flight gyroscope; gyrocompass ..
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directional-control gyroscope
定向控制陀螺仪
以上为机器翻译结果，长、整句建议使用 人工翻译 。