The calculative expression of maximum water hammer pressure in long pipelines is given.
从管道水击微分方程的特征分析入手,提出了水击特征方程的黎曼不变量和网格分析解,建立了管道水击问题的近似解析解,给出了长管水击最大水击压强的计算表达式。
The model takes water cement ratio、unit cement consumption and sand percentage as inputs,and maximum hydraulic pressure of concrete permeability as outputs.
建立了3-5-1BP网络模型,网络输入为混凝土水灰比,混凝土单位水泥用量,混凝土砂率;网络输出为混凝土抗渗最大水压力。
The surge pressure of overflow well shut-in impacts whether well can be shut down and the choice of well shut-in modes.
溢流关井的水击压力关系到能否关井,以及关井方式的选择。
Analysis of Bellows Absorb Water Hammer in Rocket Propellant Conveyer Pipeline;
火箭推进剂输送系统中波纹管对水击压力的吸收分析
incompressible water impact
不可压缩撞水冲击力
The hydraulic force by which masculine will-power is defeated by feminine water-power.
女性的水动力，赖以击败男性意志力的水压力。
Tears: The hydraulic force by which masculine will-power is defeated by feminine water-power.
泪水：女性的动力赖以击败男性意志力的水压力。
Impact Study on Billet Descaling with High-Pressure Water Jet
高压水打击力对钢坯除鳞效果的研究
The Calculating and Experiments of Surges in Surge Tank and Waterhammer Pressure in Pipe Systems;
调压室水位波动及压力管道水击压强的计算和试验
The pressure on dams and levee s is very strong.
大坝和堤防需要承受巨大的洪水冲击的压力。
Study on the Characteristics of Wave-making and Pressure in the Slamming of a Large Bridge Structure
大型桥梁结构入水砰击中兴波及压力特性研究
The Calculation of Impact Compactor s Impact Power and Impact Energy;
冲击压实机冲击力及冲击能量的计算
Studies on the Dynamic Response and the Perforation Failure of the Water-filled Pre-pressurized Pipeline Impacted Laterally by Missile;
充水压力管道受弹体侧向冲击动力响应及穿透破坏研究
pressure balanced drilling bumpersub
压力平衡式钻井震击器
Experimental Study for Dynamic Response of Foundation by Impact Rolling;
冲击碾压荷载对旧水泥路面下路基的动力响应试验研究
Mechanism Research of the Maximum Horizontal Stress on Rockburst and Its Application
最大水平应力对冲击矿压的作用机制及其应用研究
Mechanical characteristics of pavement base under impact compacted load
冲击碾压改建水泥混凝土路面时基层的受力特性研究
hydrostatic extrusio
静水压挤压;静水压挤压;静液力挤压;静液力挤压;液力静挤压
hydraulic engine
水力(液压)发动机
A Study of Impact Piezoelectric Property of PVDF Stress Gauges
PVDF压力传感器的冲击压电特性研究
pneumatic and hydraulic pressure regulator
气动及水压压力调节器