top fitting meaning in Chinese
管嘴，上端件
Examples
- building coordinate system must be implemented before blade measurement . the work piece coordinate system is built by measuring root and top fitting benchmark
叶片测量之前首先要建立待测叶片的工件坐标系,软件提供了根据叶根、叶冠安装基准建立工件坐标系的方法。