The insurance of the normal operation of vacuum degassing system and sealing performance of the desalted water drum was the important measure to control the corrosion.是什么意思_The insurance of the normal operation of vacuum degassing system and sealing performance of the desalted water drum was the important measure to control the corrosion.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句