力平衡

The study shows that the longitudinal component of the pressure force is mainly balanced by the vertical eddy frictional term and the lateral component of the pressure force is mainly balanced by the Coriolis force.

研究表明：在磨刀门河口动力平衡中，纵向的主要平衡项为压力项和垂向涡动摩擦项，侧向的主要平衡项为侧向正压力项和科氏力项。

The balancing condition of plane joint-force system is that force polygon must be closed.The graphic solution and AUTO CAD tool of computer can be applied to obtain two forces on a nodepoint fast and accurately,then internal force of truss can be obtained.

摘 要 一个平面汇交力系的平衡条件是其力多边形必须闭合，依其条件，利用图解法和计算机中的AUTO CAD绘图工具，迅速准确地求解一个结点上的两个未知力，并以其类推求解桁架各杆内力。

The control principle of electrostatic shaping was introduced according to the balance between electrostatic force and resulting force formed by membrane deformation and the complex shaping process of SMEC. Then, taking the trisection circularity electrode for an example, the distribution characteristic of electric potential in the electrostatic field was analyzed, namely, the expression of potential function in the electrostatic field was deduced by Laplacian equation. And then, by combining the difference equation with electric potential expression, the numerical solutions of electrostatic force in single electrode mode and trisection circularity electrode mode were disposed. Finally, the calculated figure was compared with the ideal paraboloid and comparison shows that more accuracy would be achieved by multi-electrode control.

根据静电力与薄膜变形载荷作用力之间的平衡关系和静电拉伸薄膜反射镜成形的复杂过程，介绍了薄膜反射镜静电成形的控制原理；以三等分环状电极为例，分析了静电场中空间电势分布特性，即从拉普拉斯方程推导出静态场势函数的表达式；然后，利用差分与电势方程结合的方法，对单电极电场力和三等分环状电极电场力进行了数值求解；最后，将计算面形与理想抛物面进行了比较，结果显示，单电极情况下得到的薄膜反射镜面形不是理想抛物面，若采用多电极控制可获得更高的控制精度。

The control principle of electrostatic shaping was introduced according to the balance between electrostatic force and resulting force formed by membrane deformation and the complex shaping process of SMEC. Then, taking the trisection circularity electrode for an example, the distribution characteristic of electric potential in the electrostatic field was analyzed, namely, the expression of potential function in the electrostatic field was deduced by Laplacian equation. And then, by combining the difference equation with electric potential expression, the numerical solutions of electrostatic force in single electrode mode and trisection circularity electrode mode were disposed.

根据静电力与薄膜变形载荷作用力之间的平衡关系和静电拉伸薄膜反射镜成形的复杂过程，介绍了薄膜反射镜静电成形的控制原理；以三等分环状电极为例，分析了静电场中空间电势分布特性，即从拉普拉斯方程推导出静态场势函数的表达式；然后，利用差分与电势方程结合的方法，对单电极电场力和三等分环状电极电场力进行了数值求解；最后，将计算面形与理想抛物面进行了比较，结果显示，单电极情况下得到的薄膜反射镜面形不是理想抛物面，若采用多电极控制可获得更高的控制精度。

Unbalanced force suffered from the spool of view, regulating body spool with two types of imbalance and balance.

从阀芯所受不平衡力看，调节机构的阀芯有通用阀门不平衡和平衡两种类型。

Unbalanced force suffered from the spool of view, the valve core regulatory agencies are two types of imbalance and balance.

从阀芯所受不平衡力看，调节机构的阀芯有不平衡和平衡两种类型。

Based on the force and moment balances on the shaft and compressor frame, mathematical formulation of shaft bearing loads, unbalanced force and moment acting on the frame were made in terms of balance weight design parameters such as masses and installations of the upper and lower balance weights.

分析了在二次平衡中，主、副平衡重的安装角为任意值的条件下涡旋压缩机的动力特性，推导了在保证机架受力情况最好的条件下，通过改变平衡重的安装角来控制主轴承受力的设计公式，从而确保了轴承的使用寿命，提高了压缩机的可靠性。

According to the basic principle of self-balanced pile test method and the conversional simplified conversion method , the pile bearing capacity between the equivalent loaded piles and self-balanced piles were compared .

根据自平衡测试法的基本原理，在传统简化转换法的基础上，通过等效受压桩和自平衡试桩上下桩段受力情况的对比分析，研究了负摩阻力对自平衡测试原理的影响，推得了桩承载力和位移的转换公式。

The necessary condition during dynamic balance structure design of high speed crank press has been pointed out, in order to get rid of unbalance of moving parts, which turns unbalance force trend to minimum.

并指出了在高速曲柄压力机动平衡结构设计中应满足的条件，使不平衡力趋向最小，以消除运动部分的不平衡现象。

According to the basic principle of self-balanced pile test method and the conversional simplified conversion method, the pile bearing capacity between the equivalent loaded piles and self-balanced piles were compared. The influence of negative skin friction on self-balanced pile test was studied. The conversion formulas of pile bearing capacity and settlement were derived.

根据自平衡测试法的基本原理，在传统简化转换法的基础上，通过等效受压桩和自平衡试桩上下桩段受力情况的对比分析，研究了负摩阻力对自平衡测试原理的影响，推得了桩承载力和位移的转换公式。

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。