[KongchangAI]
Unverified80% confidenceFactTime unknown

木材含水率是绝缘性能关键:含水率超过15%时绝缘电阻显著下降,因此教具或器具应做过烘干及表面封闭处理(漆膜/蜡封),潮湿地区存放需配干燥剂

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