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The mother board USES digital control chip which owns powerful functions and easily operation.
主板采用数字式控制芯片，功能强大操作简单。
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The relay circuit base board is arranged on the first chip.
中继线路基板配置于第一芯片上。
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The relay circuit base board is arranged on the first chip.
中继线路基板配置于第一芯片上。
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