These voltage transformers are casting resin insulated and fully enclosed structure.They are fouling resistance and moisture protection.In the same time,they can be used in the tropic area.是什么意思_These voltage transformers are casting resin insulated and fully enclosed structure.They are fouling resistance and moisture protection.In the same time,they can be used in the tropic area.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句