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The revolution bellows is idealized as a series of conical frusta, joined at nodal circles. The linear finite element analysis equation and the geometrical nonlinear finite element analysis equation in Total Lagrangian Formulation for the revolution bellows are derived using stationary total potential principle.

考虑到油罐刚度比波纹管刚度大的多，将油罐看作为刚体，将波纹管部分和管道部分分别用空间梁单元离散化，通过分析得到波纹管与油罐连接接合面、波纹管与管道连接接合面不同单元之间的位移协调约束方程，并用罚函数法进行处理。

It has proven to be a great challenge to extract information on the properties of hadrons from the rather simple Lagrangian of QCD.

如何从简单的量子色动力学的拉氏量出发抽取有关强子态的信息已被证明是一个巨大的挑战。

Even though in QCD we have a theory of the strong interactions, unfortunately, calculating the properties of hadrons from the QCD lagrangian has proven to be a very difficult task in this strongly coupled nonlinear theory.

由于QCD是一个非线性的、非常复杂的理论，而且强子内部的相互作用很强，所以从QCD拉式量出发计算强子的性质是一个非常艰巨的任务。

3D two-phase internal flow field of SRM with long-tail nozzle was simulated by means of Eulerian-Lagrangian two-phase method.

采用欧拉-拉格朗日两相方法模拟了带长尾喷管的固体火箭发动机三维两相内流场。

The second is that the Lagrangian invariant of trapped electron dynamics in tokamaks.

同时我们还发现托卡马克等离子体的坏磁场区域增大了。

Analyses and numerical experiments show that the ARJM is much faster than RJM. The geometric qualities of rezoned grids by ARJM are equal to or even better than those by RJM. The rezoned grids obtained by ARJM are closer to Lagrangian grids than those by RJM.

分析及数值实验表明，与参考Jacobian方法相比，不仅能大幅度降低执行时间，而且优化后的网格在几何品质方面相当接近，甚至更优，得到的网格与Lagrange网格更接近。

For a gauge-invariant system with a higher-order Lagrangian,the quantal Noether identities under the local and non-local transformation in configuration space have also been derived.

指出在某些情形下，由量子Noether恒等式可导致系统的量子守恒律。这种求守恒律的程式与量子Noether定理不同。

Based on the phase-space generating functional for a system with a singular higher-order Lagrangian,the quantal canonical Noether identities under the local and non-local transformation in phase space for such system have been derived.

基于高阶微商奇异拉氏量系统的相空间生成泛函，导出了定域和非定域变换下的量子正则Noether恒等式；对高阶微商规范不变系统，导出了位形空间中定域和非定域变换下的量子Noether恒等式。

Using the Second Lagrangian kinetics,the dynamic features of the robot are analysed,the generated driving torque of the arms is derived,and its dynamical models are set up.The sliding-mode fuzzy control is adopted by of the MJR120 palletizer,and the numerical simulation shows that the control method is efficient.

本文经过对该机器人进行的详细动力学分析，确定了系统的广义驱动力，运用第二类拉格朗日方程建立了系统的动力学模型；对MJR120 码垛机器人在控制上采用了滑模模糊控制技术，通过仿真实验表明了该控制方法对MJR120码垛机器人进行控制的有效性。

According to the effective Lagrangian given by SU(3) symmetry , we calculate the relation of coupling constant gV Pγof SU(3) nonets.

混合以及η？η混合，计算出物理态耦合常数gV Pγ的关系。

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。