• Constant current regulator (CCR) is to provide visual guidance for aircraft taking off and landing.

    调光器飞机起降提供目视引导的关键设备。

    youdao

  • Constant current regulator (CCR) is to provide visual guidance for aircraft taking off and landing.

    调光器飞机起降提供目视引导的关键设备。

    youdao

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