查询词典 hydraulic pressure

The hydraulic experiment show that there is a large negative-pressure area on the weir surface in the old project which has bad effects on the stable operation of the overflow dam, so the configuration optimization is necessary.

模型试验表明：原设计方案的堰面存在大面积负压，不利于大坝安全运行，需要对复合堰的体型进行优化。

In chapter 3, combining specific example, set vibration, axis swing, pressure pulsation and spectrum is analyzed, the stability of the water-power set is evaluated, unbalanced factors existed in the set is pointed out, possible excitation sources is obtained, hydraulic excitations as the most important factor is emphasized, measure aimed to improve set operation is provided and stable interval is divided.

第三章主要结合具体工程实例，通过对机组的振动测试结果分析、轴摆度测试结果分析、水压脉动测试结果分析以及频谱分析，从不同的角度综合评价机组的运行稳定性，指出了机组所存在的各种不平衡因素，给出了可能影响机组运行的各种振源，强调了水力振源是最主要的影响因素，提供了改善机组振动状态的措施并划分出机组的稳定运行区间。

Hydraulic structure can be often damaged by ice cover and ice pressure at cold areas,and slop protection construction is easier to be damaged by ice.

在寒冷地区，水工建筑物经常会受到冰盖层冰压力的侵害和威胁，而护坡工程往往首当其冲，由于在设计时对冰压力估计不足，致使某些护坡遭受冰压力的作用而损坏。

The main products are tire grinding machine CNC, PLC system control curing tank, tire pressure hydraulic machines.

主要产品有数控轮胎打磨机、PLC系统控制硫化罐、液压式压胎机等。

The failure mode and failure mechanism of hydraulic pump are analyzed in this paper,and then the temperature,pressure and rotating speed are decided primary factors for synthesis stress and the conclusion that the synthesis stress can be used in validating the life of the pumps is received.

通过对柱塞泵的故障模式及故障机理分析，确定了温度、压力和转速是与敏感应力相关的主要因素，并得出了利用敏感应力可以进行液压泵寿命的验证的结论。

Comparison of the results of experimental study and theoretical analyses further shows that the nesessary condition for the hydraulic fracturing of a soil is that the minor principal stress on the inner surface reaches the tensile strength of the soil under the action of water pressure.

试验研究与理论分析结果的比较进一步阐明促使土体发生水力劈裂的必要条件为在水压作用下内壁表面的最小有效主应力达到土的抗拉强度，从而指出过去采用的那些水力劈裂判断准则，如水压超过最小总主应力等等，都是不正确的。

It is certainly worse by the pressure reducing valve, hydraulic throttle valve and the short form of three parts.

它由定差减压阀，液动换向阀和简式节流阀三部分组成。

Hydraulic system B provides fluid under pressure of 3000 psi to portions of the flight control, landing gear, and thrust reverser systems.

系统为下列系统提供压力：液压 B 系统提供小于 3000PSI 的压力给飞行控制，起落架及反推装置系统。

This command opens the isolation valve MULTI-FUNCTIONAL WATER PUMP CONTROL VALVE that ordinarily is shut and keeps hydraulic (or, in some engine types, pneumatic) pressure away from the thrust reverser controls.

此命令将打开隔离阀通常是关闭，保持液压（或在某些类型的发动机，气动）远离压力反推控制。

When the valve when the left-bit access loop, the pressure oil through the check valve 4 into the right chamber of hydraulic cylinder piston to return quickly to the right.

当换向阀左位接入回路时，压力油经单向阀4进入液压缸右腔，活塞快速向右返回。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。