压

Using elastic multilayer theory , the compressive stress and tensile stress of the subbase course by vibrating compaction are calculated and analyzed.

将振动压路机对被压实层施加的作用力简化为圆形均布荷载，利用弹性层状体系理论，对基层振动压实作用下的底基层压应力和拉应力进行了计算分析。

In Scramjet, the evaporation of most liquid fuel occurs under the subnormal pressure condition. However, it is rarely seen in the existing documents about the study of the evaporation and combustion of the fuel droplet at subnormal pressure. This thesis gives the experimental and theoretical study about that.

在超燃冲压发动机的燃烧室中，液体燃料的蒸发大部分是在一个负压环境下完成的，现有文献对负压环境下燃料液滴蒸发和燃烧过程的研究却很少，本文对负压环境下燃料液滴蒸发过程进行了试验和理论研究。

The paper carried out combination calculation on two kinds unsteady flow problems of pressure water diversion of hydropower station (i.e. pressure fluctuation of water hammer and mass fluctuation of surge chamber), which changed many analytical error caused by considered these two phenomena separately, and such result meets the inherent rule of pressure water diversion system transient of hydropower station much more than before.

2实现了水电站有压引水系统中两种非恒定流问题(即水锤的压力波动和调压室的质量波动)的联合计算，改变了把这两种现象分开单独考虑所带来的分析误差，这样的计算结果更加符合水电站有压引水系统中过渡过程的内在规律。

In this thesis, three major achievements were made in theoretical study: conditions and rules for preparing nano-powders by chemical precipitation are analyzed from the point of view of thermodynamics and kinetics, the principle, standards and experimental method for the aqueous dispersion of nano-scaled metal oxide powders were proposed and verified, mathematical model of nano-filming addition of dopants by chemical coprecipitation was established. In experimental research, nm-ZnO, nm-Bi〓O〓, nm-Co〓O〓 and nm-MnO powder with spherical shape, narrow particle size distribution and small particle size were prepared successfully, highly stable and dispersive aqueous suspensoid of nm-ZnO, nm-TiO〓, nm-Co〓O〓 and nm-MnO powder were prepared successfully and surface modification on these nano-powders was also achieved, 0-3 nanocomposite ZnO varistors with nm-ZnO, nm-TiO〓and nm-MnO respectively were prepared successfully by conventional mechanical attrition, and exhibited much better electrical properties than those of conventional varistors.

综上所述，本文在理论研究方面取得了三项成果：（1）从热力学和动力学角度推导并分析了液相化学沉淀法制备纳米粉体的反应条件和规律，（2）提出了纳米氧化物的水分散体系的设计原理、规范和通用实验步骤，（3）提出了共沉淀的数学模型和计算方法；在实验方面所取得的成果有：（1）成功制备了粒度小、分布窄、形貌对称的纳米氧化锌、纳米氧化铋、纳米氧化钴和纳米氧化亚锰，（2）成功地制备了纳米氧化锌、纳米二氧化钛、纳米氧化钴和纳米氧化锰的高稳定分散悬浮液并实现了干粉体的表面改性，（3）成功地进行了纳米氧化锌、纳米二氧化钛和纳米氧化锰对压敏电阻的0—3复合掺杂实验，试样性能远优于常规压敏电阻，为实现压敏电阻的高能高压化提供了新的方法和思路。

The temporal and spatial distribution of SMP in tomato root zone and the correlation between tomato evaportranspiration and SMP variations were analyzed. The results showed that the variation of SMP among the soil profiles of 0, 15 and 30 cm from drip tape was insignificant, and the horizontal distance of tensiometers to drip tape had little effect on the correlation between tomato ETa and SMP variations. Lateral depths significantly influenced SMP from 20 to 70 cm soil layer and there were obvious effects of tensiometer depth on the correlation between tomato ETa and SMP variations.

对番茄根区土壤基质势时空分布和番茄耗水量与土壤基质势变化的相关性分析表明，水平距毛管0、15和30 cm 3个剖面间土壤基质势差异较小，负压计距毛管的水平距离对耗水量与土壤基质势变化的相关程度影响不大；毛管埋深对20～70 cm土层土壤基质势影响显著，负压计埋置深度对耗水量与土壤基质势变化的相关性影响显著，应依据毛管埋深确定负压计适宜埋置深度。

Lu Chi Cixi Sales of electronic equipment is Yuyao Lu Chi Electronic Equipment Factory under a sales agency, was founded in 2006, the company mainly produces computer strip machine, Terminal Crimping machines, copper strip connection machine, Computer pipe cutting machine, gas dynamic peeling machine, Air pressure bed Harness processing equipment, products widely used in the electronics industry, household electric appliances industry, Auto industry distribution, lighting industry, electric wire, cable, instrumentation industry, power tools, electrical appliances, electrical, toys, etc.

慈溪市陆驰电子设备销售部是余姚市陆驰电子设备厂下属一家销售机构，创立于2006年，公司主要生产电脑剥线机，端子压着机，铜带连接机，电脑切管机，气动剥皮机，空压压床等线束加工设备，产品广泛用于电子行业、家电行业、汽摩配行业、灯具行业、电线、电缆、仪器仪表行业、电动工具、电器、电机、玩具、等各类产品的线束加工。

In order to determine the saturated vapor pressure of colloid ed dinitrogen tetroxide,and find out its change rule with the various temperature,a testing equipment of determining satuated vapor pressure of colloid ed dinitrogen tetroxide was designed and constructed according to the principle of static testing.

为了测定胶体四氧化二氮的饱和蒸气压，找出其在不同温度条件下的变化规律，采用静态法测试原理，自行设计建立了四氧化二氮胶体饱和蒸气压的测试装置，测得了常压下液体和胶体四氧化二氮的饱和蒸气压数据，结果表明，四氧化二氮体系成胶后比成胶前的饱和蒸气压略有降低，且温度越高其差值越大。

A thirty-second rest period was allowed between each testing speed to reduce the effect of fatigue. Results. The SBP (85 to 172 mmHg), HR (65 to 122 beat/min), SpO23.3 to 13.7mL/(kgmin and R (0.72 to 1.04) values during concentric/eccentric exercise were all within the safe range.

结果 男女性别在股四头肌等速向心／离心运动，心跳率、血压、每分钟换气量、摄氧量、心跳而压乘积、脉搏血氧饱和度及气体交换率未有显著差异：收缩压、舒张压、心跳率、摄氧量、每分钟换气量、心跳血压乘绩、脉搏血氧饱和度和气体交换率等皆在安全范围。

By using this kind of miniature air compressor, energy source built-in type driving systems can be easily structured and tubeless pneumatic driving equipments can also be made.

正、负压一体化小型空压机是在现有的普通往复式空压机的基础上设计而成的。

The Levy style Cable Dome model is made up of 〓5 tension piano-wires and 〓32×1 5 compressive steel pipes, distance between nodes and the tension force of cables is adjusted by screw up and down the turnbuckle The procedure of shaping up included four ways, and the loading included fully loaded and half loaded, to validate the influence of unconservative property, the author carried through the slack procedure and the unload procedure.

该Levy型索穹顶模型，以受拉的〓5高强钢丝和〓32×1.5受压钢管构成，节点间拉索的长度以及拉索的预拉力通过拧紧或放松花篮螺丝来调节。试验内容包括成形试验和承载力试验，成形试验尝试了四种不同的成形方法，为了考察结构非保守性的影响，每种成形方法成形后，还逆序进行了结构的松弛试验，荷载态试验包括均布荷载满载（即在所有压杆上部节点施加集中荷载）和半载（在结构1／2的压杆上部节点施加集中荷载）的加载和卸载时结构工作性能的测试。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。