曲率

This paper proposed a generation algorithm for principle curvature isolines of free surface based on rectangle mesh tracking method.

针对自由曲面在展开平面上的主曲率等值线生成问题，提出一种基于矩形网格追踪算法的等值线生成算法。

Where m is matter, r is radiation, k is curvature,Λ is dark energy, and w is the equation of state.

其中m是物质，r是辐射，k是曲率，是暗能量，而w是状态方程。

Ip and Loftus 5 demonstrated the competency of an inclined end mill machining strategy on 3-axis machines in producing low curvature surfaces.

叶和洛夫特斯5展示一个斜立铣刀加工的战略能力 3，生产低曲率轴机床表面。

To reduce this problem,we developed a new mounting technique to replace Hoyer's mounting medium:non-vis...

对比试验显示，新装片技术可使植物碎片卷曲率从10.4%下降至3.8%，重叠率从25%下降至8.1%，说明新装片技术在减少植物碎片卷曲和重叠方面明显优于常规装片方法。

The torsion of the intersection curve of two surfaces in R3 can be expressed by geodesic torsions,normal curvatures and the angle between surfaces.

即两曲面交线的挠率可以用两曲面的测地挠率、法曲率及两曲面的夹角表示。

The first is that the effects of the magnetic curvature on the resistive interchange mode in tokamak plasmas.

首先是磁曲率对等离子体电阻性不稳定性的影响。

You therefore need to break the symmetrical interdependency between the two tangents.

在这个情况下，不管这样，你想使曲率的通路向在相同方向两边的曲线点陡峭。你因此需要隔断两切线的对称性。

Then the contour was smoothened and fitted by using adaptive cubic B-spline, which adjusts the distribution of control points adaptively according to the contour curvature.

然后用一种自适应3次B样条对获得的轮廓线进行修饰和平滑处理。该样条可根据轮廓线不同处的曲率变化情况，自适应地调整控制点的分布。

The effect of the friction moment of bearings on performance is researched. The forming mechanic and influence factors of the friction moment of ball bearing are analyzed. Suitable clearness and groove radius of ball bearings are obtained by experiment and calculation. The relationship between starting moment of ball bearing and various lubricants is analyzed. The measure for reducing the starting moment of ball bearing is put forward, it is the theory basis and reference for ball bearing design of small power unit system.The system is an unstable system when the 24-station ball pen tip production machine is running because of various interferences. It is too hard to describe the system by linear method, so the nonlinear formulation must be used.

研究了小动力头系统轴承摩擦力矩对运转性能的影响，分析了球轴承摩擦力矩的产生机理及影响因素，采用实验和计算的方法得到了动力头球轴承的合理间隙及球轴承沟曲率半径，分析了各种润滑剂与球轴承启动力矩的关系，并提出了减小轴承启动力矩的措施，为小动力头系统的轴承设计提供了理论依据及实践参考。24工位笔头加工机械在笔头的生产加工过程中，由于受到各种因素的干扰是一个不稳定系统，其稳定性会发生一定变化，而且很难用线性方法表述。

The wellbore trajectory control is the key and difficult point in slim hole cluster drilling technology.

井眼轨迹控制是小井眼丛式钻井技术的重点和难点，文中探讨了钻具组合、上部井眼曲率、钻井参数以及钻头选型对小井眼轨迹控制的影响，并建立了相应的井眼轨迹控制模式。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。