two-stage dewaxing

• 两段脱蜡

two-stage dewaxing的用法和样例：

例句

1. The principle and process flow of dewaxing using double membranes were described.
   阐述了食用油双膜法脱蜡工艺的技术原理及工艺流程。
2. The technical revamping of acetone-benzol dewaxing units was mainly focused on lowering energy consumption, renewal of equipment and control strategies for a period of time.
   一段时期以来，酮苯脱蜡装置技术改进主要集中在降低能耗，更新设备及控制策略方面。