减小______可以细化工件的表面粗糙度。
A.主偏角
B.副偏角
C.刀尖角
参考答案:B
单词听写
1. Have you got the _______(最新的) news about Sally?
2. Pisa Leaning Tower is ______(闻名于世).
3. In many big cities, plenty of young people are used to the _____ (夜生活).
4. Webber had three _____(音乐剧) playing in London at one time.
5. I'm sorry- I can't sing these______ (日本的) songs.
正装式复合模结构简单,又可以直接利用压力机的打杆装置进行推件,卸件可靠,便于操作,并为机械化出件提供了有利条件,故应用十分广泛。