return sand reclamation system

• 旧砂再生系统

return sand reclamation system的用法和样例：

例句

1. When in operation, the unit is generally installed together with other machines to form resins self hardening sand reclaiming line.
   本机使用时一般是与其它设备组成整套的树脂自硬砂旧砂再生流水线。