查询词典 parabolic curve

For designing free curves, the continuity condition of the two-piece curves is discussed. Finally, some application examples of the curve in the curve design are presented.

为方便自由曲线的设计，还讨论了两段曲线的拼接条件，给出了该曲线在曲线设计中的实例应用。

These approaches are suitable for noncircular gear not only with discontinuous pitch curve but also with continuous pitch curve.

这一方法不仅适用于节曲线不连续的非圆齿轮设计，对节曲线连续的非圆齿轮设计也同样适用。

The results show that the subsidence curve and horizontal movement curve are not continuous and smooth, but are unsymmetrical with some variation caused by geological conditions.

结果表明，沉陷和水平移动曲线不连续也不平滑，由于地质条件的影响，其变化是不对称的。

From the control, the static characteristic curve should be continuous, smooth, no mutation; dynamic characteristics of common frequency response curve or curves to express.

从控制要求来说，静态特性曲线应连续、光滑，没有突变；动态特性常用频率曲线或响应曲线来表示。

With considering of the risk, and through analyzing effective equations, the paper gains the generation company's supply curve and the power distribution company's demand curve of contract thus finds the effective bargaining section, and establishes the relations between the transaction capacity and price.

研究了双边合同谈判的动态形成过程。在风险规避的条件下，通过效用方程分析得到发电公司的合同供给曲线和配电公司的合同需求曲线，并确定了合同的有效谈判区间，从而建立了合同数量和价格的谈判关系。

From the convex curve of the degree of view, Beijing's one pay grade is the most convex curve, indicating that in Beijing, different grades of those positions has been the biggest difference between the amount of wages.

从曲线的凸度来看，北京的一个支付级是最凸曲线，表明在北京，不同等级的人的立场一直是最大的区别的工资额。

Intuition tells us that by following an optimal pattern which recognizes the difference in factor intensities of the two goods, we can end up on a production possibility curve that is bloated out beyond a constant-cost straight line: in short, on a production possibility curve that is convex, obeying the law of increasing marginal costs of one good as it is expanded at the expense of the other good.

直觉告诉我们，遵循一个最佳的牵式识别不同强度的因素，我们可以结束两种商品生产可能曲线上的突破了constant-cost臃肿直线：简而言之，在生产可能曲线，为凸、守法的边际成本的增加的一个好，因为它是扩大牺牲另一个好。

The paper discusses a generalized non-autonomous discrete relaxed system in time optimal control with generalizing the target constraint from the point curve to convex set hyper curve.

本文讨论了一类广义非自治离散松驰系统的时间最优控制问题，将R中点曲线的目标约束推广为凸集值函数的超曲线约束。

To use linear program, we have to take care of two problems. The first problem is that the actual relationship between intensity and duration is nonlinear convex function. In this study, we propose to use piece-wise linear curve to approximate the nonlinear convex curve. The second problem is that there are many feasible event sequences.

使用线性规划遭遇的困难有二：第一，作业强度与作业时间呈非线性之凸函数关系，因此本研究将使用片段线性曲线(piece-wise linear curve)近似作业强度与作业时间呈非线性之凸函数关系；第二，专案有很多组可能事件顺序，事件顺序的不同会产生不同的资源限制式，本研究提出一个系统化的方法求解问题。

Under this flow, the convex initial curve will preserve its perimeter, enlarge the enclosed area and make its curvature to be positive definitely. And as the time lasts, it will become more and more circular, and finally, as the time goes to infinity, the curve will converge to a circle in the Hausdorff metric.

本文证明在这种新的曲线流之下，闭凸曲线周长保持不变、所围区域的面积不断增大而曲率保持恒正，并且，随着时间的推移曲线变得越来越圆，最终当时间t趋向于无穷大时，曲线在Hausdorff度量意义下收敛到一个圆周。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48