Sand regeneration的用法和樣例：
例句
- The objective of sand reclamation is make good casting, not to reclaim sand to a given level of cleanliness.
砂再生的目的是用再生砂生產出好鑄件，而不是將砂再生到指定的乾淨程度。 - When in operation, the unit is generally installed together with other machines to form resins self hardening sand reclaiming line.
本機使用時一般是與其它設備組成整套的樹脂自硬砂舊砂再生流水線。
