For the deep excavation, in order to reduce the pressure on the pile and control the deformation of the excavation, usually, multi-braced retaining is used.
当基坑深度较大时，为了减少桩墙的受力和控制基坑变形，常采用多支撑支护方式。
The static error of pressure control less than 3%, the test results show it is validity for the multi-point hydraulic synchronous system.
在多缸液压同步系统中，压力控制的稳态误差小于3%，表明了该算法的有效性。
The stepped low-pressurized water diversion system with parallel multi-holes in regulation tanks can reduce the pressure of the conduit and effectively simplify the control of the flow discharge.
在详细分析多孔并联分段低压输水系统水力特性的基础上，建立了这一输水系统的非恒定流控制方程以及关闸和不关闸条件下的保水堰边界条件。
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