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本标准描述了外部锁定型光控器之间的光度控制方法。
This standard describes methods of light level control between an external locking type photocontrol.
youdao
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本标准描述了外部锁定型光控器之间的光度控制方法。
This standard describes methods of light level control between an external locking type photocontrol.
youdao