This paper introduces the manufacture of sealing surface (valve body) about great size check valve and analyzes the choices and the decisions about geometrical parameters of tools.
介绍了大口径止回阀阀体密封面的加工方法，分析了刀具几何参数的选择与确定。
If you already have a pair of running shoes and you're wondering if they're the right size, check the location of your big toe.
如果你已经有了一双跑鞋而你又怀疑它们是否是正确的尺寸，那你可以检查你大脚趾的的位置。
If you already have a pair of running shoes and you're wondering if they're the right size, check the location of your big toe.
如果你已经有了一双跑鞋而你又怀疑它们是否是正确的尺寸，那你可以检查你大脚趾的的位置。
应用推荐