key operation point

• 操作要点

key operation point的用法和样例：

例句

1. The key technological operation in the process of soft full grain calfskin upper leather was discussed in this paper.
   介绍了牛犊全粒面软鞋面革的特点和制作过程中的技术操作要点。
2. The purpose was to study the processing route and operating points of papier-mache Pteridium aquilinum processing.
   为了研究纸型蕨菜加工的工艺流程及操作要点。