水压的

According to evaluation of the thermal, hydraulic, environmental and mechanic characteristics and energy performance of building and VAV air-conditioning system, and evaluation of the control performance of local control loops using the simulator of VAV system, this paper presents five on-line supervisory control strategies for local control loops: on-line optimization of VAV supply air static pressure set-point, on-line optimization of AHU supply air temperature set-point, on-line optimization of on/off set of CAV sub-system, on-line optimization of outdoor air set-point and on-line optimization of chilled water secondary pump pressure set-point.

通过数字仿真器对建筑物及其变风量空调系统的热力、动力、环境和能耗等运行特性的模拟，以及对系统常规采用的下位机控制回路可控性和稳定性等控制特性的研究和分析，本文先从局部的角度开展了系统局部优化的研究。提出并在仿真器上分别实施了VAV送风静压设定的实时优化，AHU送风温度设定的实时优化，CAV子系统开／停的实时优化，新风量设定的实时优化以及二级泵冷媒水供水压差设定的实时优化。

The elastic stress diagram design method is behind the times and cant meet the command in practice.In the paper the author collected and analyzed a large amount of data about the SLRCP on several typical domestic model experiments and the projects in practice. By summarizing and analyzing the data, the author set up a typical computing model and analyzed the model by the software ANSYS, by reading the output data of the stress and the crack from the program, combined with the experimental results, the author summarized the destroy procession of the stock. The paper also discussed the influence of other main factors to the crack and the stress besides the internal water pressure, such as the concrete material, the dimension of stock and the way of laid-out steel bars.

本文通过对大量实际工程中的坝后背管资料的收集、归纳和分析，选取了具有代表性的计算模型；用有限元软件ANSYS计算了典型坝后背管结构在实际内水压力作用下的应力分布和裂缝发展情况；以国内几个有代表性的模型试验和有限元计算的成果为依据，分析了在内水压力作用下钢衬钢筋混凝土压力管道管壁裂缝的特点，并尝试总结出此种管道的裂缝出现的原因及其发展规律，同时确定了坝后背管结构极限状态的新的定义方式——以坝后背管的裂缝宽度来定义。

The optimization system of water supply networks is very complicated. It deals with lots of factors from the process of networks' modeling, node demand calculation, initial flow distribution, and the optimal design to the drawing of pipe networks and isopiestic line. The total effect will be better if amelioration is imposed on each part of these processes.

给水管网优化系统是一个比较复杂的系统，从管网的建模、节点流量的计算、初始流量的分配、优化计算到管网图形和等水压线的绘制，涉及的因素很多，任何一部分的改进与完善都有利于整体优化效果的提高。

The maj or obj ect of this paper is the medium.small size concrete dams that have been used for many years.They have the characteristic that the alteration of water height of reservoirs is unobvious and the dams, displacements are affected mainly by temperature.With a case,the method of stepwise regression is used to analyze the vertical displacement prototyDe observed data.Then regression equation is established,the relation of dam,s displacement with hydraulic pressure、temperature、time effect is analyzed and the displacement change rule is obtained,the dam'S displacement onlv dependent to temperature is received.According to the theory of Finite Elements Method,the quasi-stationary temperature field formula and temperature stress formula are deduced.The QTP program and TFEM3D program are written with FORTRAN.The same case is calculated through QTP program to solve the quasi-stationary temperature and through TFEM3 D program to solve the dam'S displacement and find tlle dam,s deformation rule.This rule is accordant with the regression,S resuIt.

本文主要针对运行期间库水位变化很小、坝体的位移主要受温度变化影响的中小型混凝土坝，结合工程实例，采用逐步回归的方法对垂直位移原型观测资料进行分析，建立回归方程，分析坝体位移与水压、温度、时效之间的关系以及位移变化规律，分析结果坝体位移只与温度有关，而基本上不受库水位变化和时效的影响；根据有限元原理推求了混凝土坝准稳定温度场公式和温度应力公式，利用FORTRAN语言编制出QTP准稳定温度场程序和TFEM3D位移场程序，对大坝的温度场和位移场进行计算，求出坝体结点的变温值和坝体结点位移值以及单元应力分量，分析得到大坝的变形规律与实测资料以及回归统计变形规律一致，说明对坝体准稳定温度场的研究是正确的。

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。

The water storage function of condenser is the must not only for gathering and storing condensed water, various water repellence of thermal system, exhaust steam and chemical feedwater, but also for cushioning dramatically changing turboset flow during the operation, improving the stability of system regulation and ensuring the essential water-absorption pressure head of condensation pump.

凝汽器的蓄水作用既是汇集和贮存凝结水、热力系统中的各种疏水、排汽和化学补给水的需要，也是缓冲运行中机组流量急剧变化、提高系统调节稳定性的需要，并且是确保凝结水泵必要的吸水压头的需要。

In order to analyze the influence and damage of the top and bottom of rock mass in floor water-resisting layers due to water pressure in water bearing layer and mining pressure, this paper applies the methods of similar material simulation test and mechanical analysis of floor water invasion in the near of faultage to further comprehend the mechanism of floor water invasion.

为了分析底板含水层水压及采动矿压对底板隔水层岩体上部与下部的影响与破坏，应用了相似材料模拟试验以及断层附近底板突水的力学分析方法，对底板突水机理有了进一步的认识；同时，由断层附近底板突水的力学分析方法所得到的理论计算结果，也可以作为判别类似条件下遇断层时承压水体上采煤是否安全的依据。

Based on the analysis of the occurrence characteristics of gold bearing pyrite veins in the area and its microscopic characteristics the paper explained the origin of mineralized veins using the principle of water pressure caused fracturing and further discussed the mechanism of holding and releasing super pressure fluid combined with the evolvement of the ore controlling structure recognizing the relation of idiomorphic coarse pyrite formed at the initial ore forming stage with gold enrichment .

在分析矿区内含金黄铁矿脉的产出特征以及镜下特征的基础上，应用水压致裂的原理来解释矿化细脉的成因，并结合控矿构造的演化，进一步阐述超高压流体的保持与释放机制，重新认识了成矿初期阶段中形成的自形粗粒黄铁矿与金富集之间的关系。

By analyzing soil quality of 4 kinds of land use types in Kalamay agriculture development area according to principal component analysis, we draw the conclusions: nature shrub tree land is affected little by mankind, a great deal of organic matter return to soil every year, and root system can improve soil physical quality, can absorb salt from soil, so the soil quality of nature shrub tree land is the best; the soil quality of farmland is better than the soil quality of manpower Tamarix Bulrush land, which may be reasoned that man make for soil quality by irrigation to exclude salt and fertilizing organic muck in the earlier oasis digging up period. Soil physical qualities of tree land get harden and worsen for flooding irrigation, furthermore climate in Kalamay is dry and rainless , the other irrigation is very long time after the former one, so soil get harden severity and result soil physical quality get worse and worse.

利用主成分分析法分析新疆克拉玛依农业开发区四种土地利用方式下的土壤质量，得出：天然灌木林地，受人为影响较小，每年有大量有机物质返还土壤，且天然灌木的根系可以很好的改良土壤的物理性质，同时所选天然灌木林灌木多是耐盐碱并且本身又具有吸收积累来自土壤的盐分，土壤质量最好；农田受到的人为影响最大，但农田综合得分却好于人工柽柳芦苇地综合得分，这可能是由于在开垦初期的绿洲农田，受到了人们灌水压盐及增施各种有机无机肥料等有利于土壤质量提高的措施所致；乔木林地，由于人们用大水漫灌的方式灌溉，致使林地土壤变得板结，土壤物理性质下降，加上克拉玛依地区气候干燥少雨，一次灌溉后较长时间后才有下一次灌溉，致使土壤理化性质恶化，土壤质量不高。

The field survey, sampling, testing and collection of the geological and hydrogeological data were done for the description of evolutional geological structure and sedimentation and division and definition of water-bearing system and hydrogeological age and hydro-pressure system and study of the vadose field and chemical field. By establishing the rammer numerical model, the sandy mudstone thickness recovery model, water-rock interaction particle translative simulation and hydrogeochemical simulation, and using geological statistics, analogism and complex analysis method, water circulation and water exchange of each layer in each study stage have been researched, The results show the regularity of the vadose field evolution in different stages.

本项以野外调查、采样测试和搜集的地质、水文地质大量第一性资料为依据，在论述盆地的地质构造演化、沉积演化的基础上，以含水系统、水文地质期和水压系统类型的划分和定位为研究的切入点，渗流场、化学场为研究主线，通过建立压实数学模型、砂泥岩恢复厚度数学模型、水岩作用物质成分转移的实验模拟、水文地球化学模拟、地质统计法、类比法、综合分析法等方法，模拟计算了各研究层在各研究时期水循环特点和水交替强度，揭示了各研究层渗流场在地史进程中形成演化的规律性。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。