两分

Two new Cornu spiral s are obtained by reducing and rotating the known Cornu spiral ,and the relative intensity distribution on the diffraction screen is analysed too.

运用缩小和旋转Cornu卷线的方法，作出了两条新的Cornu卷线，以此分析均匀半透明平面上的菲涅耳单缝衍射屏上的相对光强分

As the sample of Yuanliangshan tunnel in Chongqing-Huaihua Railway, based on the full analysis of groundwater specimens, five chemical equations are designed to calculate evaluating data by the relation of activity, equilibrium constant and Gibbs free energy. According to the two criterion of partial pressure of carbon dioxide and reaction direction, the result calculated shows the groundwater has weak corrasion to carbonate rocks, which should be avoided to do harm to tunnel.

以渝怀线圆梁山隧道为实例，通过隧道内地下水取样进行了全分析，其中CO(上标 2-下标 3)离子作为"中间过渡态"离子，由于只存在微小量未被检出；使用水质分析结果数据设计了五个化学反应方程式，通过活度、反应平衡常数及吉布斯自由能之间关系进行热力学计算，依据二氧化碳气体分压P(下标 CO2)与反应进行两个方向化学反应判据开展分析，结果表明地下水具有弱侵蚀性，在隧道工程中应避免其引起危害。

Mechanics has two main branches,Lagrangian mechanics and Hamiltonianmechanics:Lagrangian mechanics is based on variational principles and Hamil-tonian mechanics is based on symplectic structure of cotangent space.

力学有两大主要分支：基于变分原理的Lagrangian力学和基于余切空间的辛结构的Hamiltonian力学。

So, we make the selective emission through the one step diffusion method by the countercheck effect instead of by the ordinary two step diffusion method.

因此，我们认为可以通过利用SiO_2的阻挡作用，结合机械刻槽和丝网印刷，通过一次扩散宋代替通常的分两次进行扩散宋制作"选择性发射极"的方法。

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It provided a correct and reasonable mathematical model for the analysis of the ultimate bearing capacity and crankle stability of the thin-walled structure.

论文在比较了两种运动描述方法（完全拉格朗日法和更新拉格朗日法）异同点并分析了非线性几何关系及大变形下的弹性物理关系的基础上，基于增量虚功原理推导了几何非线性空间梁元单元切线刚度矩阵，采取分模块形式，分别表示了轴力、弯矩、双力矩对几何矩阵的贡献；通过球面显式荷载增量迭代式弧长法求解方法编制程序，很好地实现了几何非线性增量荷载的自动步长选择及全过程跟踪，为薄壁杆系结构的极限承载力分析和弯扭失稳分析，提供了较为精确合理的分析力学模型。

If there is a pro-Democratic/anti-Bush wave cresting, as some top strategists in both parties believe, Obama could take all of the still contested battlegrounds, which would give him nearly 400 electoral votes and a significant multiregional mandate.

正如两党的一些高级战略家认为，如果出现支持民主党/反对布什的浪潮，奥巴马可夺取所有胜负难分的战场，将使其获得近400张的选票，并显著地占据多各区域的控制权。

On April 12, a jury rendered its verdict in Kenneth Starr's case against Susan McDougal, who had been charged with obstruction of justice and criminal contempt for her continued refusal to testify before the grand jury.

4月12日，陪审团对肯尼斯·斯塔尔起诉苏珊·麦克道戈尔一案做出裁决，对她的两项指控分别是妨碍司法罪和因为一再拒绝在大陪审团前作证的蔑视法庭罪。

Most of them just achieved beauty in their own writings and criticalness in their critics on others' work.

对汉大赋而言，文人徒有兼顾美、刺之念，终于只能将刺、美二端分置于大赋的评论和创作两个方面。

The agreement preserved Bosnia as a single state to be made up of two parts, the Bosnian Croat Federation and the Bosnian Serb Republic, with a resolution of the territorial disputes over which the war was begun.

协议表示，波斯尼亚将作为一个单一的国家存在，它由两部分组成，分别是波斯尼亚克罗地亚联邦和波斯尼亚塞尔维亚共和国。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。