molding sand的用法和樣例：
例句
- A new type of sand storage silo with local fluidization and siphon discharging is recommended.
提出了局部流態化虹吸卸料的新型砂倉。 - 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製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。
