SL cylindrical roller bearings are heavy series full complement double row bearings.Thee are two types:one has unfixed end (Series SL01 and Series SL04),the other has fixed end (Series SL02).是什么意思_SL cylindrical roller bearings are heavy series full complement double row bearings.Thee are two types:one has unfixed end (Series SL01 and Series SL04),the other has fixed end (Series SL02).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句