The grease lubricated bearing assemblies are built with special heat resistant seals on the roll sides to prevent leakage and to ensure a long bearing life at high temperature.是什么意思_The grease lubricated bearing assemblies are built with special heat resistant seals on the roll sides to prevent leakage and to ensure a long bearing life at high temperature.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句