perfect vaccum 中文意思是什麼
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The shift capacity also has been improved continually and the shift ways are more perfect with days. my subject study is the vaccum tap switch of the load voltage regulation with the dry transformer, which has features of safety, reliability and convenience for maintain
開關的切換容量不斷提高。滅弧方式更加完善。本課題研究的是配合乾式變壓器有載調壓的真空分接開關。
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