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型接头和机械接头。外部液压条件下防漏密封试验方法。
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.
除了恒载以外的所有竖向荷载都可算是竖直活荷载。侧向活荷载是由于风压、土压和静水压力作用引起的外力。
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.
除了恒载以外的所有竖向荷载都可算是竖直活荷载。侧向活荷载是由于风压、土压和静水压力作用引起的外力。
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