die opening的用法和樣例：
例句
- The metal flow velocity can become uniformity by optimizing the die structure.
通過對模腔結構的優化設計，使金屬流動趨於均勻。 - IIn sheet metal, drawing is a process of forming falt sheet metal into hollow shapes by means of a punch that causes the metal to flow into the die cavity.
在金屬板範圍里，製圖就是一個將平金屬板設計成空心形狀的過程，它通過衝壓機使金屬流入模腔中。
