raw material preparation

例句：

1. 1.The factory needs to prepare the raw materialsfor the next production line.
   工厂需要为下一个生产线准备原材料。
2. 2. The engineer was asked toprepare the raw materials for the new project.
   工程师被要求为新项目准备原材料。
3. 3. Thecompany is improving its raw material preparation processto reduce waste.
   公司正在改进其原材料准备过程，以减少浪费。