允许压力

把受压容器喷出口的流速计算和喷管&直管体系引入煤气管道的试压过程，得到试验压力Ps与允许压力降[△P]间的关系。

The calculation of the outlet velocity of pressure vessel jet and the nozzle-duct system are led into the gas line pressure test , and the relationship between the test pressure Ps and the pressure drop [ △ P ] has been obtained .

煤气管道试压中允许压力降的计算

Calculation of the Permission Pressure Drop for Gas Line Pressure Test

防止套管损坏的允许压力界限的确定

Determination of the Allowable Minimum Pressure of Casing Damage

均匀坡度情况下微灌系统支、毛管允许压力差最优分配比

The Optimal Ratio of Permissive Pressure Deviation for Manifold and Lateral in Micro-irrigation Systems On Even Slops

均匀坡下微灌支管系统允许压力偏差分配比例的数值解法

^ ^ A Method of Numerical Solution of Distribution Ratio Of Allowablepressure to Mini-irrigation Branch System on Uniform Slop Land

根据深孔的体型边界综合满足等允许压力水头和等允许空化数的条件，提出了一种按临界落差设计的原则。

Based upon the condition of both equal pressure head and equal cavitation index , a ″ critical fall ″ design method is put forward .

众所周知，对于特定种类的燃气，由其灶具的工作稳定性条件所决定的低压管网系统的允许压力降为定值，并按一定比例关系分配到低压管网系统的干管和庭院管道这两部分内。

A pressure drop for the low pressure gas distribution system specified to fit the stability of gas appliance operating conditions , is generally taken as constant value .

同时讨论了影响控制范围的各主要因素：垃圾层中最大允许压力、垃圾层的透气性能、垃圾的产气速率等。

The relative factors are discussed : maximum allowable pressure inside the site , permeating coefficient of of MSW , bio-gas production rate , diameter of the well , etc.

通过现场实践，分析滑套在允许压力范围内打不开的原因并采取相应措施，在实践中起到了很好的效果。

On the basis of well side investigations , this paper analyses the reasons that sliding sleeve can 't open within the range of allowable pressure and proposes corresponding measures .

在满足多孔管允许压力差的条件下，采用变径设计，即整条多孔管由若干种标准管径的管道组成，可降低多孔管投资。

The tapered diameter design was adopted , in which the whole multiple outlet pipeline consists of pipe segments with different diameters in such a way that the pipeline cost can be reduced on condition that the allowable pressure head difference is satisfied .

他们坚决支持自己的领导，而且不允许任何压力迫使其辞职。

They stood four-square behind their chief , and they would not accept pressure on him to resign

本文将BP神经网络和遗传算法相结合，得到一种新的神经网络，并将这种神经网络成功用于计算腐蚀管道的剩余强度和最大允许注水压力。

BP neural network are combined with genetic algorithm ( GA ) named by modified BP-GA methods to successfully predict residual strength and critical pressure of injecting corrosion pipelines .

应在最大允许工作压力下测量泄漏率。

The leak ratio shall be measured at mawp .

用断裂力学研究混凝土裂缝的允许灌浆压力

Research on allowable grouting pressure of concrete crack by means of fracture mechanics

热轧立轧小柔度板坯允许轧制压力的研究和应用

Allowable rolling pressure for small-flexibility slab edging

最大容许工作压力；最大允许工作压力；最高允许工作压力

Maximum allowable working pressure

但在筒壁厚度、筒壁应力、以及最大允许操作压力方面都有很大的安全裕度。

But the wall thickness , the stress , and the operating pressure of the coking tower are very safe .

法兰最大允许工作压力应不小于该法兰在使用条件下的计算压力。

The flange maximum allowable working pressure should not be smaller than the computed pressure of this flange in operation .

得到的最低允许流动压力数值可作为油田配产和油田规划设计的重要依据。

The obtained lowest allowable flowing pressure value can be used as an important basis for allocation and design of an oil field .

最后进行了实验研究，结果表明：所设计的压电阀响应较快、允许工作压力高、输出流量大。

Some experimental investigation was performed . The results show the designed valve has the characteristic of faster response , high working pressure and large output flux .

有了这个公式，只要知道地层压力和饱和压力，便可计算出油井或油田的最低允许流动压力。

With the known formation pressure and saturation pressure , this formula helps to calculate the lowest allowable flowing pressure of a well or an oil field .

最后指出螺旋管的允许工作压力应综合考虑爆破强度、应力状态和使用环境等因素确定。

It was concluded that the allowed working pressure of the spiral tube should be determined through considering bursting strength , stress states and process conditions comprehensively .

有些方面如物理力学性状、水力性能指标、允许工作压力、以及管材的适宜规格等方面也缺乏资料。

The necessary data , such as the physical mechanic properties , the hydraulic characteristics , the permissible Working pressure , and the suitable sizes of the hose , etc.

本文描述了大型中央空调冷水机组用内螺纹外翅片强化传热高效管的内压爆破试验和最高允许工作压力的确定方法。

The thesis mainly describes the bursting test and how to determine the maximum allowable working pressure of the external / internal enhanced copper tube used for water cooled air conditioning .

若已知地层压力和饱和压力，便可计算出油井或油田的最低允许流动压力。该方法简便实用，且得到的最低允许流动压力数值可作为油田配产和油田规划设计的重要依据。

If the formation pressure and saturation pressure are known , the lowest permit flow pressure can be calculated and offer an important foundation to the allocation and design in oil field .

软件模式是一个由三部分组成的规则，它表达了某种环境、该环境下不断重复出现的某种压力系统与允许这些压力自我释放的软件配置三者之间的关联。

Software pattern is the rule formed by three parts , which express the relationship among some kind environment , the pressure system under that and the software configuration to release the pressure .

作硬度、厚度、应力和温度测试，进行应力、最大允许操作压力的校核，得出焦炭塔在厚度和强度方面是安全的。

Though degree of hardness , thickness , stress and temperature tests and checks of stress , maximum operating pressure , it can be concluded that strength and thickness of coking tower are safe .

在恒压喷灌系统允许的压力变幅内，水泵的实际工作区往往偏离其高效区，因而降低了水泵的运行效率，增大了系统能耗。

The actural working area of pump always deviates from the efficiency area , the running efficiency of pump is reduced and energy charge is raised when the pressure in a constant-pressure sprinkler system fluctuates in a permit range .

为确定全线各站的进、出站压力，建立以动力费用作为目标函数，以管道的承压能力和允许最小压力作为约束条件的优化模型。

In order to determine the inlet and outlet pressures of pump stations or of pressure reducing stations of the whole pipeline , the optimization model was established by using power consumption as objective function and the pipeline 's pressure bearing capacity and permitted minimum pressure as constraint conditions .

扩压通道内可允许的最大压力梯度的确定准则

A criterion for determining acceptable steepest local pressure gradients in an inlet