Steel lining, concrete lining and surrounding rock can work together to share internalwaterpressure.
在内水压力下，钢衬、混凝土衬砌和围岩可共同承载。
2
A field prototype test was used to analyze the method of testing the internalwaterpressure of pre-stressed concrete cylinder pipe (PCCP), its failure characteristics, and its bearing mechanism.
采用原型现场试验的方法，分析PCCP的管内水压试验方法、破坏特征和承载机理。
3
The internal gears of these contraptions were turned either by the pressure of uncoiling springs or the flow of water, mercury or sand.