基本解釋乾砂型英漢例句雙語例句Diseussion about the course during molding and easting of negative pressure dry-sand EPC has been expounded.本文針對負(fù)壓消失模鑄造的造型與澆注過程中存在的問題進(jìn)行了研究。dry sand mold更多例句專業(yè)釋義機(jī)械工程乾砂模法