同根派生 sand blaster相关词英汉例句long shelf-life較長保質期This project aims to develop an auto-control unit of a direct-control optimizing system of green sand quality for a sand mixer.本課題的目的在於研制一種用於型砂質量直接優化控制系統的混砂機加料自動控制單元。sand blaster更多例句