力平衡

In this paper, we study nonlinear perturbation analysis of mesoscale verticalcirculation and evolution equation by means of f plane, non-hydrostatic balance andfilter model. Outstanding nonlinear characteristic of mesoscale disturbance invertical direction, we obtain nonlinear symmetric disturbance equation anddisturbance amplitude s evolution equation by use of multi-scale and singularperturbation technique.

中文摘要：本文采用f平面、非静力平衡、滤声波模式，讨论了大气中尺度非线性动力学方程，通过尺度分析重点突出了扰动在垂直方向上的非线性特征，从而得到了对称扰动非线性方程，运用多重尺度方法和摄动分析讨论了对称扰动非线性重力惯性波的演化过程，得到非线性重力惯性波振幅演化服从广义的非线性Schrdinger方程。

In this paper, compensation techniques of seismic simulation system are introduced primarily, including geometric cross coupling compensation, overturning movement compensation, off center load compensation and force balance compensation.

对振动台控制技术的台面补偿技术作了初步研究分析，其中包含几何交叉耦合补偿、倾覆力矩补偿、偏心负载补偿和力平衡补偿，并分析了它们的原理和电路实现原理框图。

According to the principle of mechanics, with the consideration of the gravities of coal dust particles and liquid droplets, coal dust size and humidity, under the condition of force balance when the coal dust was raised, the authors obtained a theoretical formula for the threshold velocity of coal dust with humidity.

作者根据力学的基本原理，考虑颗粒和液滴重力、煤粉颗粒尺寸和湿度的影响，利用煤粉颗粒起动时的力平衡条件，推导出在风的作用下，具有一定湿度的煤粉颗粒开始扬起的起动风速的理论表达式。

For tightening and receding of wefts, the conditions under which wefts recede from the back beam and move forward towards the front beam relative to warps are developed by combining equilibrium condition of forces of warp with critical slip condition of weft.

针对纬纱的打紧与回退问题，将经纱的力平衡条件与纬纱的临界打滑条件相结合，建立了纬纱相对于经纱向后梁一侧回退及向胸梁一侧前移的条件。

In the paper, the simulation model of port plate/cylinder block frictional pair in which the lubricating film forms was established according to force balance equation and flow continuity equation with SIMULINK of MATLAB. The frictional pair includes of damp groove type continuous oil supply port plate /cylinder block frictional pair and semi-perimeter double oil groove type periodical oil supply port plate /cylinder block frictional pair.

本文根据配流副数学模型中的力平衡动态方程和流量连续方程，利用数学仿真软件MATLAB中的SIMULINK工具包分别对阻尼槽型连续供油配流副和半周槽双油腔间歇供油配流副建立了润滑膜形成的仿真模型，并对不同工况下的这两种配流副润滑膜的形成及变化规律进行动态仿真研究。

In this paper, the principle and formulas to evaluate the stability of slopes with ground water are introduced,the equilibriumfunctions of element have been derived consideringthe influence of the pore pressure, and the formulas of water pressure on boundaries of element are also discussed.

摘 要：讨论了地下水作用边坡稳定性分析的运动单元法基本原理与公式，推导了有孔隙水压力影响的单元静力平衡方程和单元边界水压力的计算式。

The strong points of the compound gear pump are balanced hydraulic pressure of radius, uniform of flow rate, small volume, large displacement and low noise and so on.

它具有径向液压力平衡、流量均匀性好、噪声低、排量大、体积小等优点。

In addition Hertz contact theory is only applied to the simple shape and semi-infinite boundary condition.

传统计算轴承的方式是采用力平衡方法及Hertz接触理论。

They are differentiated twice with approximate ideal differentiators to obtain the corrected accelerogram.

本文通过对数字强震仪系统使用的力平衡加速度计的仪器响应误差进行分析，提出了一个校正仪器响应失真的处理方法，即对未校正记录做低通滤波后运用近似理想微分器做两次微分得到校正加速度记录。

The parametrically excited and forcedly-parametrically excited equations of ship rolling in longitudinal and oblique seas are established.

主要研究内容和结论如下：考虑波面形状引起的船舶初稳性高的变化，假设升沉和纵摇满足准静力平衡，提出了纵浪和斜浪中初稳性高波动项的计算方法。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新