常見例句long shelf-life較長保質(zhì)期This project aims to develop an auto-control unit of a direct-control optimizing system of green sand quality for a sand mixer.本課題的目的在于研制一種用于型砂質(zhì)量直接優(yōu)化控制系統(tǒng)的混砂機(jī)加料自動控制單元。 返回 sand blaster