And can complete the constant pressure and decide the regulation to take shape two craft ways , the constant pressure forms a line the craft way to have after the suppression guarantees presses with from the time delay return trip movement 并能完成定压及定程成型两种工艺方式，定压成行之工艺方式在压制后具有保压和自延时回程动作。
Abstract : connecting with example this paper introduces the rational application of bypass pressure fixing and secondary pumping system in air conditioning ' s cooling water system of tall buildings 文摘:本文结合实例介绍了旁通定压和二级泵系统在高层建筑空调冷水系统中的合理应用。该技术节约了设备初投资和运行费用，使系统的运行曲线和设计水压线相吻合。
Analyses the common problems existed in present pressurization methods . based on experiences in practice , puts forwards two improved modes , and presents a qualitative analysis of system pressure distribution ( pressure diagram ) 摘要分析了目前常压热水锅炉供暖系统定压方式存在的一些问题。结合实践提出了两种新的定压方式，并对其压力分布（水压图）进行了定性分析。
There are two pressing methods for the first pressure of toe pad pressing mechanism . the consistent pressing function makes the lasting process smoothly the position fixed function avoids the over lasting and pulling down of toe uppers when using the soft leather 而且，压头一次压采二种著方式，定压时可使结帮过程平顺定位时，对比较柔软的皮料，不容易发生帮距拉长及前档片下拉的现象。
For the model with defined pressure on boundary both inside and outside , the thesis first proofed the discrete numeric solution existence of the general difference equation to the seepage mathematical model by discrete functional analysis ; then it presented a concise and effective numeric solution , predicted - corrected method , and proofed the convergence of it ( 3 )对于内边界为定压生产、外边界也为定压生产条件下的渗流数学模型，首先利用离散泛函分析方法，就该模型一般形式的差分方程证明其解的存在性;然后给出一种针对此问题的具有较高效率的预估?校正方法，并证明其收敛性。
With the aid of these blocks , it is convenient and flexible to make up different kind of automatic - controlled simulating system and so to accomplish different kind of automatic adjusting task . this paper is focused on the construction of the simulation model of ccs by using the contrived control section model . the ccs employs advanced direct energy balance control strategy and can simulate different running patterns such as turbine following boiler pattern , boiler following boiler pattern , etc . two independent control loops : power control and frequency control , are used in the contrivance of deh and they are separately corresponding to the normal condition and the abnormal condition 本文利用开发的控制环节模块，着重建立了协调控制系统的仿真模型，该协调控制系统采用了先进的直接能量平衡控制策略，并能仿真机跟炉、炉跟机、机炉协调、手动以及定压和滑压等运行方式；开发的功频电液系统模型采用了功率控制和频率控制两个独立的控制回路，能够在机组正常运行和启停时对汽轮机进行控制。
Introduces the structure of the multi - actuators control system based on pressure decrease sensing . then a multi - actuators control system model is developed for the constant pump discharge pressure hydraulic system . also the factors that affect the static accuracy of actuators " speed and flow rate and the dynamic characteristic are analyzed in this chapter 第二章简单叙述了基于压差传感的计算流量反馈流量控制原理及其实现；介绍了基于压差传感的多执行器复合控制系统的构成；之后主要针对定压系统多执行器复合控制建立了数学模型，并分析了影响执行器速度及流量稳态控制精度和动态特性的一些因素。
For the purpose of solving the interconnection of the heating supply between the small high - rising building and multi - storied building , this paper advances that the pressure fixing system on the by - pass pipe should be used in the secondary network system , and probes into the pressure regulating range of the water replenishing and pressure fixing system on the by - pass pipe 为了解决小高层和多层建筑的供热并网问题,提出了将旁通管定压系统应用于二次网系统中,并对旁通管补水定压系统调压幅度进行了探讨。
2 ) temperature analysis of spindle bearings : using the basic theory of heat transfer , the paper founds the heat transfer model and derives the heat transfer resistance and heat transfer equations in spindle units . 3 ) running performance analysis of spindle bearings : the paper analyses the running performances with the influences of the friction heat , structure and application parameters through an example . 4 ) stiffness analysis and testing of spindle bearings : using hertz contact theory , the paper derives the stiffness formula , computes , analyzes and tests the stiffness through an example 4xio ‘ ，定压预紧下，陶瓷球轴承的刚度大于全钢轴承，而定位预紧下则相反； 5 ）一般，轴承中球的温度最高，内圈次之，外圈温度最低，但定压预紧厂转速达到一定值时，外圈温度可能高于内圈； 6 ）主轴平动固有频率和轴承径向刚度的测量值与计算值基本一致，忽略w1 ） d的影响使测量值小于计算值，表明理论分析是正确的。
Based on warren - root model , introducing fractal parameter ( df and ) and deformable coefficient ( af , f ) this thesis constructed all kinds of seepage flow mathematical models to the pressure - sensitive deformable double media fractal reservoir with the defined production or pressure in inside boundary and defined pressure or closet outside boundary when the effects caused by permeability and porosity company with the pressure change ware concerned . ; 、 ， ， ，考虑压力对具有分形特征的渗透率和孔隙度的影响，建立了内边界分别为定产量和定压，外边界分别为定压和封闭情况下的各种变形双重介质分形油藏渗流数学模型。
