曲率

Corneal curvature in myopia has a noticeable correlation with such factors as gender, diopter, corneal thickness and tonometry.

近视眼患者角膜曲率与性别、近视屈光度、角膜厚度和眼压等因素均存在显著相关性。

Methods The tangential curvature of the anterior cornea was measured every 0.3 mm from the apex in 360 meridians by an Orbscan-Ⅱ topographer.

中度近视无散光中国青年55人，采集Orbscan-Ⅱ角膜地形图上360条子午线、距角膜顶点0.3 mm为间隔的点的前表面曲率值。

This topographical map shows not only the height and curvature of the front of your cornea, it also shows the back.

此地形图不仅显示的高度和曲率的前端，您的角膜，但它也显示了回来。

Besides,we study the topology of Riemannian manifolds with some curvature conditions via comparisonsl geometry methods,and we get some results towards the topological type and the finiteness of isomorphism classes of fundamental groups of some Riemannian manifolds.

另外，我们在比较几何的框架下研究了具特定曲率条件的Riemannian流形的拓扑，得到了有关有限拓扑型和基本群同构类的一些结果。

A planar geometric spline, biarc spline, is generalized to a 3D geometric spline whose curvature and torsion are all constant.

给出基于非线性规划解的双圆柱螺线样条局部构造法，把平面几何样条——双圆弧样条推广到常曲率和常挠率的空间几何样条。

On the basis of Prof. S. Knothe's expression for arbitrary point in subsidence trough, the equations are derived with probabilistic integration for calculation of slope, curvature, horizontal movement, horizontal deformation, torsion and form deformation at arbitrary direction and point in subsidence trough.

本文在克诺特建立的地表下沉盆地任意点表达式的基础上，导出用概率积分法计算下沉盆地任意点任意方向的倾斜、曲率、水平移动、水平变形、扭曲和形变公式，并得出主剖面计算公式是任意点任意方向移动与变形计算公式的特例。

The torsion of a curve;.

曲线的第二曲率

Polarization configuration recognition based on analysis of torsion and curvature .

极化识别配置的基础上扭转和曲率分析。

The resulte showed that length of curvature and total outlet area of an impeller have a significant influence on the performance of centrifugal pump.

结果表明，叶轮的曲率半径和总出口面积对离心泵性能有明显的影响。

Unit of drum arrangement, ensure business card printing and membership card making paper from business card printing and membership card making until after the completion of the transfer, even if the business card printing and membership card produced at large format paper can do the same with that in mind, so that the paper passes to a minimum, paper transmission line to minimize the total curvature.

机组的滚筒摆列不圆法，包惯被制卡和会员卡制息纸弛于制卡和会员卡制息全部达成后才举行传达，即便制卡和会员卡制息最不小幅面的纸弛也能做到这一点，使纸弛的传达次数加至起码，纸弛传负线路总曲率加到最小。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐