基本解釋[計(jì)算機(jī)科學(xué)技術(shù)]定中爪[機(jī)械工程]定心凸輪詞組短語短語bottom centering jaw 下定中爪top -centering jaw 上定中爪top centering jaw 上定中爪self -centering three-jaw chuck 自定心三爪卡磐jaw centering 定中爪centering jaw更多詞組專業(yè)釋義計(jì)算機(jī)科學(xué)技術(shù)定中爪機(jī)械工程定心凸輪