建立出土率与密封舱压力变化率的数学关系,为盾构掘进密封舱压力控制提供参考模型。
The function of discharge rate and the changing rate of the chamber pressure is established, which provides the reference model of chamber pressure control for EPB machine tunneling.
我也希望如果在药物帮助下抑郁有所改观的话,那么也感到看到压力减少的相关变化,这同样会对减少痘痘的发作率。
I'm also hopeful that if the change in depression medication helps, that maybe I'll see a correlating change with reduced stress levels [that] maybe reduce acne as well.
其基本原理是利用计算机高速采集密封门的密封腔内压力的变化规律,据此计算出密封门的泄漏率。
The principle of this system is that we can calculate the leak ratio of the airproof gate through detecting the change ratio of press in the cavity of airproof gate.
分析了两相流体中音速随压力、干度、汽隙率、相变系数等的变化关系,并从中得出了一些重要的结论。
The change of sound velocity with pressure, dryness degree, void-fraction, and phase-transition coefficient are analyzed. Some important conclusions are derived.
在此基础上,分析渗透率模量变化对气藏压力和产量的影响,分析应力敏感性高压气藏井流入动态。
Then, the influence of the permeability modulus on the pressure and production of gas reservoirs and the inflow performance of stress-sensitive gas Wells with high pressure are analyzed.
举例分析在环空和钻柱内的稳定流动过程中,随井深增加,压力、含气率、多相流体密度等的变化规律;
The steady-state flows in drill pipe and in annulus are analyzed and the variations of pressure, gas void fraction, and multiphase-flow density along the well depth are simulated.
计算表明,无限导流水平井压力动态早期受流率分布变化影响,并不出现井筒径向流特征。
The results indicate that infinite-conductivity horizontal well transient pressure is influenced by variable flux, but it doesn't appear early well-bore radial flow characteristic.
以低渗透多孔介质为研究对象,通过实验得出渗透率随有效压力变化曲线。
Low permeating and porous medium was taken as an object for study, it can be educed from the experiment that the curve of permeability changed with the effective pressure.
在此基础上,分析无因次表观渗透率变化系数和流度比对压力动态的影响。
On the basis, the influence of dimensionless apparent permeability variation factor and mobility ratio to pressure behavior has been analyzed.
主要研究了试验工况对循环流率的影响以及系统的压力平衡变化。
Experiments were carried out in a lab-scale double-dipleg circulating fluidized bed (DDCFB) to study effects of experiment conditions on re-circulating rate and pressure balance.
基于渗透率随压力呈指数变化规律,建立了任意形状应力敏感性双重介质油藏不稳定渗流的数学模型。
Based on the law of permeability changing with pressure, a mathematical model is established for unsteady percolation in dual-porosity reservoirs with arbitrary shape of stress sensitivity.
利用高压下铁的电阻数据,结合X射线衍射结果,推导出铁的电导率随压力的变化关系。
The pressure dependence of electrical conductivity of iron was finally deduced from the resistance data and the X-ray diffraction results.
计算表明:考虑天然裂缝渗透率变化的滤失量要远远大于常规双重介质模型得到的滤失量,当净压力较高时,二者可相差10倍之多。
The calculation shows that, fracturing fluid leak-off considered variable permeability are greater than conventional fractured loss model, when net pressure is higher, the two has 10 times difference.
不受工艺条件,如:密度,粘度,电导率,腐蚀性,蒸气,湍流,尘埃和不断变化的压力和温度。
Unaffected by process conditions such as: density, viscosity, conductivity, corrosiveness, vapors, turbulence, dust and changing pressure and temperature.
通过算例表明,应用该法进行口模优化设计可以减小压力降和口模出口速率变化率。
An example shows that using this method can obtain a uniform velocity profile across the die and minimize pressure drop.
本发明提供了一种基于聚合物的流体动力学接触传感器(100),其基于不同的环境压力下的横跨传感器的电阻率变化而测量环境压力(103)。
A fluid dynamic polymer-based contact sensor (100) measures ambient pressure (103) based on the resistivity changes across the sensor under different ambient pressures.
结果表明:空气弹簧的刚度不仅与其静平衡位置时的压力和容积有关,还与其有效面积变化率和体积变化率有关。
The results show that the stiffness is dependent not only on the pressure and volume at static balance, but also on the change rates of efficient area and volume.
根据测试结果和理论分析,得出了温度、压力和含水率在板坯内部随时间变化的分布规律、影响因素和三者之间的关系。
Based on the test results and academic analysis, we got the distribution rule and influence-factors of them as well as the relationship among them.
并根据大量的实验数据,拟合得到含瓦斯煤的渗透率随围压和孔隙压力变化的经验方程。
The new equations for gas permeability of the coal samples are formulated by the numerical simulations of experimental data.
对于较小的负荷变化率,压力计算值与测量值偏差小于3%,而较大的负荷变化率时,偏差有增大趋势,但其误差小于5%。
The comparison result of computation value and measure value shows that their deviation is within 3% for low load ratio, and has increasing tendency for high load ratio, but it is within 5%.
该模型考虑刀盘开口率的影响,获得盾构周围土体中土压力的动态变化曲线,并将土压力的实测值和计算值进行比较。
This numerical model gives the dynamic change of earth pressure in the soil around the shield model; and the calculated values are compared with those monitored in the model experiment.
该模型考虑刀盘开口率的影响,获得盾构周围土体中土压力的动态变化曲线,并将土压力的实测值和计算值进行比较。
This numerical model gives the dynamic change of earth pressure in the soil around the shield model; and the calculated values are compared with those monitored in the model experiment.
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