In order to prevent galvanic or spark corrosion on the shaft bearings, BAC produces a shaft earthing device, which is well proven and easy to install.是什么意思_In order to prevent galvanic or spark corrosion on the shaft bearings, BAC produces a shaft earthing device, which is well proven and easy to install.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句