半径

Be set arbitrarily small by increasing feedback gains.

大反馈系数可使球半径任意小。

If we apply the FNN in the control of a class of nonlinear dynamic systems a theorem shows that the static error of pursuit control can be small arbitrarily as long as clustering radius is small enough.

定理表明，将这种神经网络用于一类非线性系统的控制问题中，可使静态误差任意小，只要聚类半径足够小。

Where l is the arc length opposite to αas a central angle ,r is the radius of the

如果半径为r的圆心角α所对弧的长为l，那么，角α的弧度数的绝对值是｜α｜＝l/r。

The central angle opposite to an arc of length equal to the radius is called an angle of 1 radian.

radian 长度等于半径长的弧所对的圆心角叫做1弧度的角。

A radian is the angle subtended by an arc of a circle whose length is just equal to the radius.

一弧度就是长度刚好等于半径的一段圆弧所对的圆心角。

"Because a straight line can be thought of as an arc of a circle of infinite radius, its curvature is zero."

直线可视为半径无穷大的圆，曲率为0

The arc data interpolation error by secant, tangent and chord, and the smallest error by secant mode is analyzed in this paper. The relation between the maximum radial error and arc radius and approach step-length in the secant mode of arc data interpolation in CNC system is detailed.

在分析数控系统圆弧数据插补割线方式较切线、内接弦插补方式误差更小的基础上，讨论了数控系统圆弧数据插补割线方式中最大径向误差与圆弧半径和逼近步长的关系。

This paper presents a new method——using mean radius of curvature to find the substitutive arc of Archimedes spiral,with which better precision can be obtained and the calculating formulas are very simple.

提出了一种用平均曲率半径法求阿基米德螺旋线的代用圆弧的新方法，其计算公式简单，并可得到较高的精度。

This paper presentes the spherometer of designed with the principle of Archimedes spiral, it has main advantage: both continuity measurement and direct reading to curvature radius of sphere, over against some classical instruments requested the conversion of the measuring result.

本文提出的应用阿基米德螺线原理设计的球面曲率计，克服了某些经典仪器需间接换算测量结果的缺陷，其主要优点是能直接读出所测球面的曲率半径和进行连续性测量，在使用上极为方便。

He remembers from his school days that the area of a circle is proportional to the square of its radius, and expects that in the case of a uniform distribution, the number of stations counted should increase like the sequence of number 1, 4, 9, 16, and so on.

他记得他学生年代的时候，一个圆形区域的面积和它的半径的平方是成比例的，所以他认为在均匀分布的情况下，汽油站的数目应该以1，4，9，16等等这种数列增加。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。