基本解釋桶形滾柱；[機(jī)] 凸度滾子英漢例句雙語(yǔ)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、採(cǎi)用塑料保持架、改進(jìn)擋邊結(jié)搆及凸度滾子的應(yīng)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(yǔ)短語(yǔ)crowned roller path 滾柱軸承的凸形滾道crowned roller更多詞組專業(yè)釋義機(jī)械工程凸度滾子