静态阻力

The soil cutting experiment indicates that the interior friction angle and the shear intensity of soil is reduced;and the maximum principal stress is decreased due to the vibration load;it induces the decrease of digging resistance.

从理论上研究了振动掘削岩土的减阻机理，土壤剪切试验结果表明，振动载荷能够使土壤的内摩擦角变小、抗剪强度下降、最大主应力值减小，从而导致挖掘阻力降低；对土壤在静态载荷和振动载荷作用下的失效过程进行了对比仿真实验研究，可知土壤在振动加载的条件下强度显著下降，并提前于相同条件的静态加载而破坏，同时跟踪X方向的载荷发现，振动掘削最大掘削阻力可降低50%。

The target strength term R〓 in A-T model is derived based on the quasi-static spherically symmetric cavity expansion theory.

四。基于静态球形空腔膨胀理论，考虑脆性材料在高速冲击作用下的破碎，求出了空腔膨胀压力，即靶体阻力R〓，为合理确定修正的流体动力学理论模型中靶体强度参数提供了合理的方法，求出的侵彻深度与试验结果符合较好。

Objective To analyze the changes in static compliance and resistance of the respiratory system in toddlers with pneumonia.

目的：研究1-3岁幼儿肺炎呼吸系统静态顺应性及阻力的变化。方法：422例幼儿肺炎分为1～2岁和～3岁两个年龄组，其中重症肺炎108例(1～2岁59例、～3岁49例)，普通肺炎314例(1～2岁153例、～3岁161例)及58例正常幼儿(1～2岁28例、～3岁30例)；采用美国森迪公司2600型肺功能仪，用被动流速容量技术进行Crs及Rrs的测定。

Additional experiments measuring airways resistance, total pulmonary resistance, and static and dynamic compliance tended to support the hypothesis that the fog effect is due to reflex bronchoconstriction.

测量气道阻力，全肺阻力，以及静态和动态顺应性的实验还倾向于支持这一假设的雾效应是由于反射性支气管收缩。

The motion of the fluid flowing through a SKstatic mixer in laminar flow can be resolved into rotary motion and straightline motion, so we can respectively calculate the flow resistance of the two motions.

将流体在静态混合器中作的层流流动分解为直线运动和旋转运动，然后分别计算这两种运动在流管中的流体阻力，并将两者相加后得到SK型静态混合器中液体层流流动时流体阻力的计算式。

Numerical simulations were done for a bistable latch valve of the system by FLUENT, and three groups of datum for different fluids were obtained with the same effective exit sectional area. Besides, a static mathematic model for the electromagnetic valve was established based on the obtained datum. Secondly, the motion of the valve spool was realized by UDF file in FLUENT. Three kinds of motions, uniform, acceleration and motion driven by the coupling effect of the liquid resistance and the electromagnetic force, were calculated and compared. The dynamic characteristic of the electromagnetic valve was obtained by analyzing the relationship of the mass flow rate of the inside flow field of the electromagnetic valve, the change of the drop pressure of the passageway of the valve, and motion time.

并针对系统中的某双稳态电磁阀，使用商用CFD软件FLUENT对其进行内部流场的数值模拟，通过使用不同流体介质，不改变阀门有效出口截面积的情况下，分析得到的三组数据，建立了该电磁阀的静态数学模型；通过编写UDF文件，实现对阀芯运动方程的控制，在阀门做由闭合到开启、开启到闭合运动时，控制阀芯分别做匀速运动、匀加速运动以及阀芯受到液体阻力与电磁力作用力的耦合力的运动，分析了三种工况下电磁阀内部流场质量流率和阀门出口入口压降的变化以及运动时间，从而得到该电磁阀的动态特性。

Rough pavement makes the fork feel as if it's locking up with stiction and harshness.

粗糙的道路让前叉好像被静态阻力和阻碍锁死了不能运作一样。

The water supply system :→ Set source water wells → tube static mixer →-folded plate flocculation tank → tube settler resistance → ordinary filter Chi →→ two-pool pump → distribution network.

采用的给水系统为：源水→集水井→管式静态混合器→平折板絮凝池→斜管沉淀池→小阻力普通快滤池→清水池→二泵→城市管网。

In this paper, the influences of main factors such as ship speed, cable weight, cable resistance, vehicle weight and so on, to the dynamic response of the system are studied, especially to the cable shape, cable length and cable tension.

本文在缆体系统静态运动分析的基础上，详细讨论了航速、缆重、缆阻力系数、拖体重量等主要参数对缆体系统运动各方面的影响，特别是对缆形、缆长、缆张力的影响，得到了一些规律性的结论。

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。