apex angle造句

• The thickness varies according to the half - apex angle , and the forming limit half - apex angle is the key which nc incremental sheet metal parts forming process succeeds , it relates to the material and thickness of the sheet metal
  变形区厚度的变化与成形半顶角有关，其中，成形极限半顶角是数控渐进成形能否成功的关键，它不仅与材料有关，而且与板料厚度有关。