• Plastics piping systems. elastomeric sealing ring type joints and mechanical joints for thermoplastics pressure piping. test method for leaktightness under external hydrostatic pressure.

    塑料管道系统。热塑塑料压力管道用的弹性密封环接头机械接头。外部液压条件防漏密封试验方法

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  • Vertical live loads include all vertical live loads other than dead loads. Lateral live loads are external forces due to the action of wind, earth, and hydrostatic pressure.

    除了恒以外所有竖向荷载都可算是竖直荷载。侧向活荷载由于风压和静压力作用引起的外力

    youdao

  • Vertical live loads include all vertical live loads other than dead loads. Lateral live loads are external forces due to the action of wind, earth, and hydrostatic pressure.

    除了恒以外所有竖向荷载都可算是竖直荷载。侧向活荷载由于风压和静压力作用引起的外力

    youdao

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