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锁闭阀

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  • 锁闭阀原理?

    调节阀泛指用各种于控制管路中流体的流量的阀门,其中锁闭阀是指在一定条件下能够锁定阀门位置的阀门,在特定情况下,它们可以是同一个阀门。锁闭阀设计原理:在搬动阀门开关连接点的部件上,设置了若干磁性点,在用[详细]

    2023-01-29 18:43 分类:问答
  • Is it safe to define _HAS_TRADITIONAL_STL to enable STL functionality?

    In attempting to use std::select1st from <functional> in a VS2008 project I found that it was ifdef\'d out by a _HAS_TRADITIONAL_STL gua开发者_开发知识库rd.[详细]

    2022-12-24 22:55 分类:问答