Gyroscope drift and its measurement. B. Principle of typical gyroscope instruments, such as gyro compass, gyro north finder, gyro horizon, platform compass, rate gyroscope and integrating gyroscope.

典型陀螺仪器（包括陀螺罗经、陀螺找北仪、陀螺地平仪、平台罗经、速率陀螺仪和积分陀螺仪等）的工作原理；

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In July it was announced the Areva group and China Guangdong Nuclear Power Corporation (CGNPC) group were to bid for the Horizon project, which includes Wylfa B.

BBC: The existing Wylfa plant on Anglesey