查询词典 water pressure

Also, the performance of four techniques, using different approximation to estimate the equivalent peak value of shear stress and strain were investigated for the purpose to determine the equivalent shear modulus, damping, excess pore water pressure and residual strain induced by seismic loading, in which the equivalent peak value was computed in terms of its standard deviation and the corresponding peak factor.

利用上述动力有限元程序分别对水平地基进行了总应力、不排水有效应力和排水有效应力随机动力响应分析，并通过4种不同的方法来计算地基的等效剪切模量、阻尼比、振动孔压和残余剪应力。

Keywords:PHC pile; expressway bridge engineering; excess pore water pressure; measure

关键词］PHC桩；高速公路桥梁工程；超孔隙水压力；措施

The pump with a plunger device,which can cope with water pressure flow to work smoothly under a high speed .

活塞式水泵，可以自动调节水的压力和流量，保证高速下的安全操作，是一种超精密的产品。

And the effect of water pressure on concrete crack width is mainly studied; concrete crack width of penstocks in Three Gorges Hydropower Station is predicted in the end.

并重点研究了水头的变化对压力管道混凝土最大裂缝宽度的影响，最后对三峡电站压力管道混凝土结构裂缝进行了预测。

The students use a pump to increase the water pressure inside the bottle. When the bottle is finally released it is sent shooting off into the distance.

他们用帮浦增加瓶子内的水压，当最后瓶子释放这些压力时，就会把瓶子喷射出去。

Like other pump, impeller, water pressure chamber, the sewage pump two core components.

和其它泵一样，叶轮、压水室、是污水泵的两大核心部件。

During the big fluctuation transient condition of a hydropower station operation, in order to minimizing the water pressure and the hydraulic units' run-speed rising, optimizing the wicket gate closing law is one of the most economic way to solve the station operation security problem during the process of big fluctuation transient.

水电站运行的大波动过渡过程中，为了最大限度地减少水压上升值与转速上升值，通过导叶关闭规律来解决大波动过渡过程中水电站的运行安全问题是最经济的有效措施之一。

The fundamental feature of this procedure is the modified relationship of stress and strain by residual shear strain potential and residual volumetric strain potential in dynamic time-history analysis. In the meanwhile, the effect of the residual dynamic pore water pressure on the maximum shear modulus is considered.

该方法在动力时程分析中重点考虑了逐渐累积的残余剪应变和残余体应变对应力应变关系的软化效应，同时考虑了各时段残余振动孔压引起的最大动剪切模量的衰减效应。

Test results have shown that larger plastic volumetric strain as well as higher growth rate of pore water pressure would be generated in multi-directional shearing than in a single-directional one. Lower resistance of sand to liquefaction was also observed under the rotation of principal stress orientation.

与单向剪切相比，多向剪切会产生额外的塑性体积应变，在不排水条件下孔隙水压力增长的速率较高，特别是在具有主应力轴连续旋转特点的加载条件下，砂土抵抗液化的能力也将更低。

If a valve downstream from the filter is shut too fast, the water pressure will reverse and can cause "ballooning".

如果过滤器的下游水阀门关闭太快，水压会倒转，而形成气泡。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。