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1)  air-spaced cylindrical coil spring
大螺距圆柱弹簧
2)  variable pitch cylindrical helical spring
不等节距圆柱螺旋弹簧
3)  cylinder helix spring
圆柱螺旋弹簧
1.
In this paper,the optimization design of cylinder helix spring was introduced and the mathematical model of cylinder helix spring was established.
介绍了圆柱螺旋弹簧的优化设计方法,建立了圆柱螺旋弹簧优化设计的数学模型,并结合实例借助于数学软件MATLAB的优化工具箱进行了寻优计算,给出了优化设计程序,得到了满足实际需要的最优化参数,这对于圆柱螺旋弹簧的设计具有理论指导意义。
2.
Immune Algorithm (IA) based on Immune principles is introduced and the application of IA in fuzzy optimum design of cylinder helix spring is discussed in this paper.
介绍了一种基于生物免疫原理的免疫算法及其在圆柱螺旋弹簧模糊优化设计中的应用。
3.
This new hybrid algorithm is used to solve the problem of shear stress verifying of a cylinder helix spring,which belongs in a typical problem of mechanical optimization design.
用该新型混合算法解决了圆柱螺旋弹簧的剪应力校核这一典型机械优化设计问题,并与传统罚函数法、混沌-Powell混合算法及标准GA进行了比较。
4)  cylindrical helical spring
圆柱螺旋弹簧
1.
Characteristic research on bending elasticity of prestressed cylindrical helical spring;
预应力圆柱螺旋弹簧弯曲弹性特性研究
2.
The measurement and compensation of the hysteresis of cylindrical helical spring;
圆柱螺旋弹簧迟滞的检测和补偿
3.
This paper introduces the characters and the pressure measuring method of cylindrical helical spring, analyzes the problems of current measuring systems, sets forth the working principle of this measuring system and discusses the worktable\'s structure and the control system\'s design method.
介绍了圆柱螺旋弹簧的特点及压力检测方法,分析了现有检测系统存在的问题,阐述了圆柱螺旋弹簧压力检测系统的工作原理,详细论述了工作台的结构及控制系统的实现方法。
5)  Cylinder spiral spring
圆柱螺旋弹簧
1.
Design of cylinder spiral spring of new model thread-taking-up mechanism in computerized embroidery machines
新型电脑刺绣机挑线机构圆柱螺旋弹簧设计
2.
This paper analyses the relation of the tolerance, strength and rigidity of cyinder spiral spring and gives a method for calculating the tolerance of cylinder spiral spring.
在分析圆柱螺旋弹簧尺寸公差的可靠性条件和刚度的基础上提出了一个计算圆柱螺旋弹簧尺寸公差的方法。
6)  cylindric helical spring
圆柱形螺旋弹簧
1.
Part of formulas in the design of cylindric helical spring are combined into a group of formulas only relating to the spring index C and a set of parameter list can be acquired by introducing C= 4~14 into the calculation.
将圆柱形螺旋弹簧设计中的部分常用公式组合成一组仅与弹簧指数C有关的公式,并将C=4~14代入计算而获得一套参数表,由此,可提高圆柱形螺旋弹簧的设计效率。
补充资料:DNA螺距
分子式:
CAS号:

性质:指DNA的双螺旋链中的任意一条链绕轴一周(360η°)所上升(或下降)的距离。该螺距通常是3.4nm,其中包含十个核苷酸,因此每两个相邻碱基平面的垂直距离为0.34nm,相对于该螺旋轴仅移动36°。

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