查询词典 Pressure

In the meiobar range, membrane resistance was the dominant role, independent of operating terms. In the middle pressure range, concentration difference-polarized resistance was the dominant role, depending much on operating terms. In the high pressure range, gelatin resistance was the dominant role. The influences of the operating pressure was small on the membrane flux, and the membrane's separating characteristics were related much with mud concentration, membrane flow velocity and etc.

研究结果表明，在低压区，膜本身阻力占主导地位，它与操作条件无关；在中压区，浓差极化阻力占主导地位，它与其他操作条件关系密切；在高压区，凝胶层阻力占主导地位，操作压力增加对膜通量影响不大，在此阶段膜分离特性还与污泥浓度、膜面流速等操作条件有关。

The average diameter decreases monotonically with increasing effective confining pressure,which is defined as the difference between confining pressure and pore water pressure.

试样的平均直径随着有效围压的增长而单调减小。在此，有效围压被定义为围压和孔隙水压之差。

To improve the reliability of pressure measurement in detonation combustor of pulse detonation engine, the pressure/time curves of detonation were measured at single detonation and multicycle detonation, respectively, by using a dynamic pressure measurement system.

为了提高脉冲爆震发动机（Pulse Detonation Engine，简称PDE）内爆震波压力测量值的可靠性，解决多循环PDE爆震室压力测量问题。

Venous blood was drawn from 35 old hypertension patients when blood pressure was nomial and abnormal, respectively. Epinephrine. norepinephine, endothelins, angiotensin Ⅱ and calcitonin-gene-related peptide were determined by radio-immunity. The above five cytokines were also determined in 33 old healthy people. The cytokines levels were compared between the normal and abnormal blond pressure in hypertension patients and also between the old hypertension patients and healthy persons. The correlation between blood pressure and cytokines were analyzed.

35例老年EH患者，血压正常时和血压波动时各抽取静脉血一次，放射免疫法检测肾上腺素、去甲肾上腺素、内皮素、血管紧张素Ⅱ和降钙素基因相关肽水平，同时检测33例健康老年人群各因子水平，比较EH患者血压波动前后各因子水平的差异和血压正常范围时两组人群各因子水平差异，分析不同状态下血压和各因子水平之间的相关性。

On the basis of investigation on oscillometric technique for non-invasive blood pressure measurements, and combined the technique with pulse-wave theory, this paper designs a blood pressure and artery stiffness measuring apparatus, which not only can measure blood pressure and heart-beat-rate accurately, but can calculate the measurers arterial stiffness index and vascular compliance.

本论文在研究分析无创血压测量方法示波法的基础上，结合脉搏波理论，设计出一种准确高效的血压与血管硬度测量仪，该仪器不仅能够准确测量出受试者的血压与心率，还能够计算出受试者的动脉弹性指数和臂动脉顺应性，为医生判断患者的动脉硬化程度提供一种有效的检测手段。

An advanced non-destructive measurement technique was applied for the first time in the research of two-phase transport of gas-water in coal seam. The home-made triaxial osmoscope which is made up of non-magnetic polycarbonate material and can change confining pressure, axial pressure and pore pressure, was placed into the magnetic cavity of NMRI instrument.

首次将先进的无损检测NMRI成像技术引入煤层中气水两相运移的研究领域，将自主设计研制的、可同时改变围压、轴压和孔隙压的、非磁性聚碳酸酯材料制成的三轴渗透仪置于NMRI成像仪磁体腔中，通过气驱水和水驱气NMRI试验实时观测了气水流动规律。

The calculating results are compared with the test data in available literatures and FEM results. The research results show that the plastic hinge model is precise and correct, which can satisfy with the actual engineering demands. The collapse pressure of perforated liner casing decreases with phrase angle, initial ovalization and diameter-thickness ratio increasing, and increases with the yield stress. The phrase angle and initial ovalization have greatly influence on the collapse pressure. The collapse pressure of perforated liner casing is slightly changed with the diameter and density of perforation when the diameter and density are smaller than 12mm and 120 shots per meter, respectively.

计算结果表明：筛管抗挤强度的塑性铰模型具有很高的计算精度和准确度，可以满足工程实际需要；筛管抗挤强度随着射孔相位角、径厚比和初始椭圆度的增加而降低，随着屈服强度的增加而增加，相位角和椭圆度对筛管抗挤强度影响比较显著；在射孔直径小于12 mm、射孔密度小于120 孔/ m 时，筛管抗挤强度随射孔直径和射孔密度增加变化不明显。

The pressure of the medium act against the two valve seats equally in reverse direction, so the pressure on the valve seat is offset, the valve core assumes relatively low pressure when the valve is open, in this way the overlarge displacement is obtained.

双平衡阀座：该阀利用双阀孔设计，介质的压力对两个阀座作用相等，方向相反，介质压力对阀座作用相抵消，阀芯在开阀时压力相对减少，从而获得超大排量。

The criterion is similar to hyperbolic strength criterion including uniaxial compression strength and uniaxial tensile strength, which is an extended form of Griffith-Murrell criterion essentially under the condition of polyaxial stress when hydrostatic pressure is lower, and it represents the first failure type. However, the criterion is similar to generalized Mises criterion when hydrostatic pressure is higher, and it represents the second failure type. The transition part between the two criteria represents the third failure type when hydrostatic pressure is high.

该准则包含单轴抗压和抗拉强度，在静水压力较低时，实质上它是Griffith-Murrell准则在多轴应力状态下的一种扩展形式，反映脆性岩石破坏类型1；在很高静水压力下该准则可转化为广义Mises准则，反映脆性岩石破坏类型2；而当静水压力较高时，该准则处于上述两种准则的过渡阶段，反映脆性岩石破坏类型3。

Based on some principal rules of brittle rocks polyaxial tests and previous researches, three controlling failure types for brittle rock are obtained. The first type represents the brittle failure controlled by extension microcrack under the condition of lower hydrostatic pressure; the second represents the ductile failure controlled by friction sliding action under the condition of higher hydrostatic pressure when microcrack is close; and the third represents brittle-ductile failure type controlled by multiple factors mentioned above under the condition of high hydrostatic pressure when some microcracks are open and others are close.

通过分析脆性岩石多轴试验中的强度和破坏规律，在已有研究成果基础上，将其强度和破坏控制类型主要归结为3种：类型1，低静水压力时裂缝张开扩展，主要表现为张性微裂缝控制型脆性破坏；类型2，静水压力很高时，裂缝闭合，主要表现为摩擦滑移控制型延性破坏；类型3，处于两者之间时，微裂缝一部分张开，一部分闭合，主要表现为两者复合控制型脆延破坏。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。