势的

The principle of minimum potential energy was used to derive the governing differential equation and corresponding boundary conditions.

分析了压杆屈曲时的几何变形条件，导出了压杆的曲率、变形能和各项外力势的表达式，用最小势能原理导出压杆失稳的微分方程和边界条件。

Lastly,a nonlinear oscillatory system with a single potential well is studied.

在本文的最后，对一类含单阱势的非线性振动系统的安全盆的侵蚀进行了研究。

The structural properties of ultrathin rhodium nanowires are studied by using empirical molecular dynamics simulations with genetic algorithm. Helical multi-shell cylindrical and pentagonal packing structures are found.

铑纳米线的结构，通过基于分子动力学的遗传算法结合紧束缚多体势的模拟发现也是螺旋多壳和五边形生长的结构。

The Brenner potential based MD simulations are performed to study the compression and detaching between the 47°, 69° and 93° carbon nano-cones and one rigid plane , and the configuration, energy and external-loading evolvement during the compression and detaching are obtained.

采用Brenner势的分子动力学方法，模拟了47°、69°及93°锥度碳纳米锥与刚体平面压缩、分离的全过程；获得了三种碳纳米锥与刚体平面作用过程中的构形演变、能量-变形曲线以及力-变形曲线；根据模拟结果，分析了它们承载能力以及变形能力的差异。

In his new book Falling Behind, Prof Frank argues that the resulting struggle to keep up with the plutocratic Joneses has led the American middle class to work harder, endure longer commutes, sleep less, save less and borrow more.

法兰克教授在新作《落后》里提出，由此产生的结果是，为了努力赶上有钱有势的邻居，美国的中产阶级更努力工作，忍受更长的通勤时间，睡得更少，储蓄更少，借贷更多。

The flow resistance and the phase permeability and the coupling of the flow between the reservoir and the wellhole were adopted to admend the deliverability equations of the horizontal well, which improves the applicability of the formula and the adjusted deliverability equations can guide and serve in the fields production with the the horizontal well.

本文以评价边底水油藏水平井产能及影响因素为总体目标，在国内外文献调研基础上，采用镜像反映原理和势的叠加理论推导出边底水油藏水平井产能公式，然后考虑完井、多相渗流及井筒压降对产能的影响，提出了利用流动阻力、相渗透率及井筒与油藏流动耦合修正水平井产能的修正方法，提高预测公式的适用性，为边底水油藏水平井生产提供了指导作用。

And it is shown that the contribution from ingoing wave is equal to the one from outgoing wave in the radiation spectrum chemical potential term caused by the charged rotating particle.

而且在结果中显示，由带电旋转粒子引起的，辐射谱中类似化学势的项，入射波与出射波的贡献是相等的。

This thesis, basing on the finite temperature field theory and its effec tive perturbative method, has done some research in the influences from collective effect of QGP to its thermodynamic potential and certain important related problems.

本文在有限温度场论和其有效微扰方法的基础上，研究了夸克胶子等离子体的集体效应对系统热力学势的影响及其相关的若干重要问题。

In chapter two and three, for the low-frequency electromagnetic problems in multi-media, an alternate A-φ method (in Chapter 2) and a fractional-step A-φ method (in Chapter 3) based on ungauged vector potentials are developed respectively.

第二、三两章关于多媒质中的低频电磁问题发展了基于非规范势的交替A-φ方法和分数步A-φ方法，并在一定条件下对这两类方法的全离散有限元逼近误差进行了理论上的分析和估计； 3。

The non-uniform channel impurity, the non-equal surface potential for the changing of balance energy band and the gate capacitor by the edge effect is thought about; the mathematics expression of the deep sub-micron non-uniform channel DMOS threshold voltage model is obtained.

计及沟道区杂质的二维非均匀分布、平衡态能级对沟道各点表面势的影响和栅电容的边缘效应，给出深亚微米DMOS的阈值电压二维解析式。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。