基本解釋桶形滾柱；[機] 凸度滾子英漢例句雙語例句By improving steel material quality, adopting plastic cage, improving rib structure and using crowned rollers, the life and performance of cylindrical roller bearing can be largely increased.經(jīng)改善鋼材質(zhì)量、采用塑料保持架、改進擋邊結(jié)構(gòu)及凸度滾子的應用，可使圓柱滾子軸承的壽命和性能大幅度提高。crowned roller更多例句詞組短語短語crowned roller path 滾柱軸承的凸形滾道crowned roller更多詞組專業(yè)釋義機械工程凸度滾子