Nets are popularized in a wide range of end user.Pre-sented in this paper are the principles of forming open-ings and methods and rules of correctly determining therelative position and designing with two guide bars.S...Nets are popularized in a wide range of end user.Pre-sented in this paper are the principles of forming open-ings and methods and rules of correctly determining therelative position and designing with two guide bars.Sev-eral practical examples are also given.展开更多
文摘Nets are popularized in a wide range of end user.Pre-sented in this paper are the principles of forming open-ings and methods and rules of correctly determining therelative position and designing with two guide bars.Sev-eral practical examples are also given.
