压力

According to the measured pressure data of the four-stroke small utility gasoline engine, the cyclical variations of the maximum pressure, the crank shaft angle at the maximum pressure, the mean indicated pressure and the largest pressure rise rate were analyzed. Meanwhile, the influences of ignition advance angle, load and rotation speed on cyclical variation were also investigated.

根据实测小型通用四冲程汽油机气缸压力，分析了最大爆发压力、最大爆发压力所对应曲轴转角、平均指示压力以及最大压力升高率等参数的循环波动特性，以及点火提前角、负荷和发动机转速对循环波动的影响。

The static model of torsion joint is based on that of bending joint. The effects of structure parameters inside air pressure, initial angle, rube average radius, rube shell thickness on the turning angle are analyzed and the following conclusions are drawn: the relationship between the angle of torsion joint and the inside air pressure is basically linear, the angle of torsion joint increases with the initial angle and rube average radius, the angle of torsion joint decreases while the rube shell thickness increases. The kinetic equation is built for torsion joint. Simulating experiment implies that the time of inflating and deflating process is extremely shorter than that of kinetic process. So the pneumatic process can be ignored in actual system design and control. The factors that affect the dynamic features of torsion joint, such as shell thickness of rubber tube, average radius, initial angle, connector's outlet area, moment of inertia and viscous damping coefficient, are analyzed and the following conclusions are drawn: the change of rube shell thickness has no effects on the dynamic process of FPA inside air pressure while greatly affects the turning angle of torsion joint; when the rube shell thickness is small, the torsion joint has a bigger turning angle, no overshoot and long risetime, when the shell thickness is big, the turning angle of torsion joint is small, but has high response speed, overshoot and low shock; when the rube average radius increases, the turning angle of torsion joint increases and the overshoot increases too; when the initial angle of torsion joint is big, the turning joint is big, the overshoot is small and shock is low, but the risetime is big; the connector's outlet area affects the dynamic process of FPA inside air pressure greatly, but has no effects on the dynamic process of turning angle; moment of inertia and viscous damping coefficient have no effects on the dynamic process of FPA inside air pressure, but affect the dynamic process of turning angle greatly.

在弯曲关节模型推导的基础上，建立扭转关节的静态模型，并分析了扭转关节内腔压力，初始转角，橡胶管平均半径，橡胶管壁厚等参数对关节转角的影响，得出扭转关节的转动角度与充入FPA内腔的压缩气体压力之间基本呈线性关系，扭转关节的转角随初始角度和橡胶管平均半径的增大而增大，扭转关节的转角随橡胶管壁厚的增大而减小的结论；建立了扭转关节的动力学方程，仿真实验表明FPA的充放气过程与扭转关节的动力学过程相比时间极短，在实际系统设计和控制过程中可以忽略不计；分析讨论橡胶管壁厚，平均半径，初始角度，气体节流口面积，转动惯量，粘性阻尼系数等因素对扭转关节动态特性的影响，得出橡胶管初始壁厚的变化对扭转关节FPA内腔压力的动态响应几乎没有影响而对关节转角的响应曲线影响比较明显，壁厚较小时，关节可以得到较大的转角，并且转角的响应曲线没有超调，但上升时间长，壁厚较大时，关节转角变小，响应加快，但是有超调和轻微振荡现象，橡胶管平均半径越大，得到的关节转角越大，但是转角响应的超调量也随之增大，FPA的初始角度越大，关节的转角越大，并且超调量减小，振荡减弱，但是上升时间增大，管接头出口面积的大小对关节FPA内腔压力的建立过程影响较大，但对关节转角的动态响应几乎没有影响，转动惯量和粘性阻尼系数对FPA内腔压力的动态过程几乎没有影响而对扭转关节转角有较大影响等结论。

Based on the condensability of liquid,the structure used in multi-axis force sensor of underwater robot aimed at balancing hydraulic pressure was investigated and an iteration algorithm used to calculate the pressure difference between in and out of the sensor was put forward,which applied the pressure balance method of film .

以水下机器人所用多轴力传感器的压力平衡结构为研究对象，基于液体的可压缩性，提出了膜片式压力平衡传感器内外压力差的迭代算法，推导出了膜片式压力平衡法的内外压力差、额外轴向力及相关公式。

Pressure Gauge:Corrugate Pipe Type Precision Pressure Gauge and Vacuum Gauge、Corrugate Pipe Type Pressure Gauge,Combined Pressure And Vacuum Gauge And Vacuum Gauge, Capsule Pressure Gauge, Recording Pressure Gauge, Tyre Pressure Gauge, Pressure Controller, Digital Pressure Gauge

压力仪表：弹簧管式精密压力表和真空表、弹簧管式一般压力表、压力真空表和真空表、膜盒压力表、记录式压力表、压力真空表及真空表、轮胎压力表、压力控制器、数字压力计

The results showed that the pressure and pressure derivative of non-newtonian fluid is higher than newtonian one;The power index is more smaller,the pressure and pressure derivative is more higher;The effect of skin factor on transient was different from that of power index;The storativity ratio and inter-porosity flow factor is just same as the newtonian fluid,and the effect of outer-boundary on transient pressure is different from that of newtonian fluid.

结果表明，非牛顿流体的压力及压力导数都明显高于牛顿流体；幂律流指数越小则压力和压力导数越大；表皮系数和非牛顿流体幂律流指数对压力响应的影响有着明显的不同；而弹性储容比和窜流系数的影响和普通三重介质相同，只是由于非牛顿流体的影响其"凹陷"的位置升高；外边界的影响也和牛顿流体的情况明显不同。

According to translate and neaten Professor Elkind's books and articles, this thesis is connect with American social background since 1960, discusses Professor Elkind's research about child stress condition, the dynamics of hurried child, the risks of miseducation and the strategies of relaxation. In order to settle China child's stress problem in modern society, this thesis provides some valuable revelations.

本文在翻译、整理、分析和研究爱尔坎德相关著作及文章的基础上，结合美国二十世纪六十年代以来的社会背景，阐述了爱尔坎德对儿童压力状况、儿童压力来源、儿童压力危害以及缓解儿童压力策略的研究，并对解决我国儿童在现代社会中的压力问题提出有益的启示。

Analysis of the feature and geometry of the normal compaction trend is used to establish the compaction trend with polynomial of degree 2 or 3 or polygonal line, and to predict the distribution of geopressure using the method of seismic transit time deviation -pore pressure gradient in Yinggehai bas.

研究了压力预测的方法，推导地震声波时差差值—压力梯度法的计算公式并指出它的优点是能够充分利用已知的钻井实测压力资料；从理论上分析了正常压实趋势线的性质和形态，并用2~3次多项式和分段函数建立正常压实趋势线；根据莺歌海盆地高温高压及沉积速率高、泥底辟发育的特征，建立合理的压实趋势线，并用声波时差差值—压力梯度法预测了莺歌海盆地的压力分布。

Ecsis German original pressure differential table, electric contact pressure gauges, diaphragm pressure gauge, stainless steel pressure gauge, ultra-high pressure manometer; pressure transmitter, temperature transmitter; pressure sensors, force sensor, weighing sensor, temperature sensor; dual metal thermometer, FarEasTone thermometer, thermal resistance, thermocouple thermometer; fretting pressure switches, pressure switches magnetron, mechanical, electronic pressure switches, etc..

ECSIS德国原装压差表、电接点压力表、膜片压力表、不锈钢压力表、超高压压力表；压力变送器、温度变送器；压力传感器、力传感器、称重传感器、温度传感器；双金属温度计、远传温度计、热电阻、热电偶温度计；微动压力开关、磁控压力开关、机械式、电子式压力开关等。

I see four kinds of pressure working on college students today: economic pressure, parental pressure, peer pressure, and self-induced pressure.

我发现有四种压力影响着今天的大学生：经济上的压力，父母的压力，同伴的压力，和自己导致的压力。

Tensility is the fourth member of tension, feeding traction, the traction tension and letoff tensility.

四段压力即指不播卷压力、进料牵引压力、不入料牵引压力和播卷压力等四局部。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。