阿基米德

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。

To achieve a low stiffness beam in a micro plane, the planar spiral beam based on Archimedes' spiral is designed.

为了获得低刚度，设计了基于阿基米德螺旋线的平面螺旋梁结构。

The archimedes spiral cord modulating chopper's exposure efficiency was theoretically analyzed and numerical simulated, and its impact on the following signal processing was obtained.

对阿基米德螺旋线调制斩波器的曝光效率进行了理论分析和数值模拟，得到斩波器曝光效率对后续信号处理的影响。

Considered the inside and outside contour line was Archimedes spiral in the cold rolling, the forming law of rectangular cross sectional rings has been studied. And the more precise geometrical models and calculation models have been gained. The researches can be used as a theoretical and experimental foundation for the simulation of ring rolling process. At the same time, the results of theoretical analysis have a good agreement with the results of practical rolling production.

本文在考虑冷轧过程中环件的内外轮廓线均为阿基米德螺线的情况下，对矩形截面环件的轧制成形规律进行了研究，得到了较精确的几何模型和计算模型，为环件轧制过程的模拟提供了理论依据和实验依据，同时理论分析的结果与实际轧制生产过程中的结果有较好的吻合。

Further optimal' design and performance test show that smooth transition between Archimedes spiral and cyclone chamber is realized, and therefore more stable flow field and higher separating efficiency are fulfilled.

进一步的优化设计和性能试验表明，空间阿基米德螺旋线进口流道和导流螺旋实现了平滑过渡，从而得到较稳定的流场和较高的分离效率。

This paper presents the basic construction and movement rules of the coordinator gyrorotor with reticle of Archimedes spiral reticule pattern , Also, it explains the principles and methods of dynamical balance to damp the vibration and forced nutation.

阐述了具有阿基米德螺旋线图案的位标器的基本原理及其运动规律，并说明这种陀螺转子的振动与绕动的平衡原理与方法。

During the machining process, the error of the cutter's installing angle and Archimedes spiral curve interpolation will influent the machining error.

在加工过程中，刀具的安装角度误差、阿基米德插补误差等都将影响工件的加工误差。

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。

In this method,the Archimedes spiral was adopted as channel midline which could be generated by programmer in the process of modeling,and the original wooden patterns and the area change rule of channel could be modified,so that 3-D design of double-channel impellers could be implemented.

在该设计方法中，采用阿基米德螺旋线为流道中线，在造型过程中编入程序生成流道中线，并对原木模图和流道面积变化规律进行修正，实现对双流道式污水泵叶轮的三维设计。

He experimental assess method of alloy fluid is put forward used the length of Archimedes spiral line through indirect squeezing in squeeze casting.

提出了利用间接反挤阿基米德螺旋线长度来评价挤压铸造条件下合金熔体充型能力的实验评定方法。

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。