基本解釋[經(jīng)濟學]滾筒冷卻落砂機英漢例句雙語例句Design principles and using conditions of the knockout barrel are described.介紹了滾筒落砂機設(shè)計原則及使用情況。knockout barrel更多例句詞組短語短語knockout t barrel 滾筒冷卻落砂機knockout barrel更多詞組專業(yè)釋義經(jīng)濟學滾筒冷卻落砂機