力常数

According to the plane cross section assumption, configuration of a rod is expressed as a history of the cross section with arc coordinate. A special solution which stands for equilibrium in straight line state is obtained from differential equilibrium equation. Linear perturbation equation is derived and its general solution is obtained in which the integral constants are determined by constrained conditions at two ends of the rod. The condition of existence of non zero solution of the integral constants gives to the Greenhill formula of exact elastic rod model, which shows that the boundary of stable area is a closed curve and of symmetry, and inference of shearable and extensible to stability of the rod is depend on three factors: difference between flexibility of shear and extension of a section of the rod, bending stiffness and the length of the rod.

基于平面截面假定，弹性杆的位形表达为截面的弧坐标历程，根据平衡微分方程得到了两端受力螺旋作用时的直线平衡特解，导出了线性化扰动方程及其通解，积分常数根据两端铰支时的边界条件确定，并根据其存在非零解的条件得到弹性直杆精确模型的Greenhill公式，表明稳定域为一对称的封闭区域，拉/压和剪切对稳定性的影响取决于：拉/压柔度与剪切柔度之差，抗弯刚度和杆长这三个因素

This problem was addressed by developing "polarizable force fields" [1][2] or using macroscopic dielectric constant .

这个问题可由极化力场来解决。或者利用大尺度介电常数。

Or people use experiental postulation to slove the antiforce from soil vs, wall. That kind of methods includes constant method.

要么以经验性的假定来求解土体对墙体的反力，这一类方法有常数法，m法和山肩邦男法等。

Why does the field force is in inverse proportion to the square of the distance between the two masses, but not to three or four power of ones and to prefigure that the constant G of the gravitation isn't invariant.

概述：此文章描述了引力的动力过程，阐述了引力质量是惯性质量的一种表现形式；场力为什么与作用距离的平方成反比，而不是与三次方、四次方成反比；并预示了万有引力常数G并不是真正不变的常量等等。

The gravitational mass is an embodiment of the inertial ones. Why does the field force is in inverse proportion to the square of the distance between the two masses, but not to three or four power of ones and to prefigure that the constant G of the gravitation isn't invariant.

概述：此文章描述了引力的动力过程，阐述了引力质量是惯性质量的一种表现形式；场力为什么与作用距离的平方成反比，而不是与三次方、四次方成反比；并预示了万有引力常数G并不是真正不变的常量等等。

The second and third structure movements of polymer involving slowpolarization effect is proposed by summing up a wide variety of experiment results, from Gibbsfunction, the parabola type relation between the reciprocal of slow dielectric coefficient andtemperature are obtained, which properly explains the β transition of polymer.

5归纳大量的实验结果，提出了聚合物的慢极化效应联系着二级和三级结构的运动；参照晶体中的软模理论，认为聚合物的β转变源自恢复力系数的软化；采用唯象理论，得出慢介电常数的倒数与温度T的抛物型关系，聚合物的β转变实验结果证明了理论的预言。

Having investigated composites of EP coating ultramicro iron using ATPU as surface agent, results showed that with increasing amount of ATPU, density , complex permittivity and complex permeability of composites decreased, and retentivity and coercivity increased.ε"μ"

用ATPU作表面活性剂制备核壳结构复合粒子时，随着复合时ATPU用量的增加，复合粒子的密度、复介电常数和复磁导率逐渐减小，剩磁与矫顽力逐渐增大。

The relaxation coefficient, and the amplitudes of the correlation function have been measured, and the splay and twist elastic constants and viscosity of nematics in different temperatures are determined.

通过测试具有不同预倾角的液晶的动态变形参数和在力场作用下扭曲变形参数，分析和探讨预倾角对向列液晶弹性常数和扭曲变形程度的影响规律

In most design codes axial loads are assumed to be nodal and do not vary along the member length.

在大多数的设计中编码轴的力被假定是常数并且沿着钢架长度不变。

The mechanical properties and the electrical properties of the cantilever, such as spring constant, resonant frequency, mechanical quality factor, piezoelectric output and the noise level, determine the resolution of a AFM when piezoelectric cantilever is used as the force sensor.

在作为原子力显微镜的力传感器使用时，压电探针的机械特性，如弹性常数、谐振频率、谐振质量因子，以及电子特性如压电输出、噪声水平等决定了原子力显微镜的分辨率，而对于带有针尖和三角形前端的PZT压电探针，这些特性迄今未得到系统研究。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。