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发表于 2020-10-26 14:18
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您好,谢谢回复,请教一下这个supplied from a transformer怎么理解?假如不是提供电源的是不是可以不用做?3 s, J) f ~1 Q
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Appliances incorporating circuits supplied from a transformer shall be constructed so that in
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not occur in the transformer or in the circuits associated with the transformer.
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