Power transformer and reactor fittings - Part 2: gas and oil actuated relay for liquid immersed transformers and reactors with conservator.是什么意思_Power transformer and reactor fittings - Part 2: gas and oil actuated relay for liquid immersed transformers and reactors with conservator.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句