结合在制造配件过程中遇到的大直径小半圆孔加工和测量方面的问题进行了简单的分析，提出了具体的解决方案。
The paper briefly analyzed some problems most frequently occurred in the processing and measurement of big diameter small half circle parts, and suggested some concrete solutions.
笔者采用半圆形皮钩并钻圆孔获得较好的效果。
The author has succeeded in performing this type of operation utilizing a semispherieal skin hook with a small round hole at …
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