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- logarithm spiral curve 对数螺旋线
- logarithmic spiral curve 对数螺线曲线
- Groove is a series of recessed logarithmic spiral. 槽型是一系列凹进的对数螺线。
- However, logarithmic spiral can be used to substitute for the Archimedes curve to solve such problems and guarantee the stability of cutter machinability. 若改用对数螺线作为铣刀铲背曲线,则克服了阿基米德螺线的不足。
- The wind speed basically followed empirical Ekman spiral curve with height distribution. These results could find their application in Sichuan basin universally. 风速随高度分布基本遵循经验爱克曼螺线,这一经验公式可在四川盆地内推广应用。
- The wind speed basically followed empirical Ekman spiral curve with height distribution.These results could find their application in Sichuan basin universally. 风速随高度分布基本遵循经验爱克曼螺线,这一经验公式可在四川盆地内推广应用。
- We have obtained fast generation algorithms for ellipse, parabola, hyperbola, Archimedes spiral, logarithmic spiral, and probability curve arcs with increments and properly-chosen parameter equations. 本文采用增量法,选取适当的参数方程,得到了椭园(包括园)、抛物线、双曲线、阿基米德螺线、对数螺线以及概率曲线弧的快速生成算法。
- The principle and device of machining logarithmic spiral profile shaft with form milling cutter are introduced. 介绍了用成形铣刀加工对数螺线型面轴的原理和装置。
- Based on the logarithmic spiral failure surface and combined with the characteristic line throry,a new computational method is proposed and procedure is prepared. 考虑对数螺旋线的破坏面并结合特征线理论,提出了一种新的浅埋条形板极限上拔力的计算方法并编制了程序。
- The radiation spectrum for relativistic electron moving along curved spiral curve in plasmas is calculated, and also the formula of total energy emitted by a relativistic electron in vacua is derived. 计算了等离子体介质中,沿弯曲螺旋线运动的相对论电子的辐射谱,进一步导出了真空中的能量辐射公式.
- The characteristic of the logarithm 6.3214 is 6. 对数6.;3214的首数是6。
- A Method of the Middle Spiral Curve Joining in Road Complex Curve 公路复曲线的中插缓和曲线连接的一种方法
- A preparatory handling system for NC machining of small spiral curved surfaces is developed by using FORTRAN language and C langUage. The system operates well on special NC milling machines. 采用计算机辅助交互式设计技术,研制了一个小型的螺旋曲面计算机辅助图形数控铣削加工自动编程的前处理系统,该系统用FORTRAN语言和C语言混合编程,在特制的数控机床上运行良好,能有效切削各种复杂截面的圆柱螺旋曲面外表面。
- Grounded on coordinate measuring technology of CMM, in this paper, two-coordinate on-line measurement principle for spiral curved surface and probe radius compensating method are researched. 基于三坐标测量机(CMM)的坐标测量技术研究了螺旋曲面两坐标在线测量原理与测头半径补偿方法;
- Functional changes included angjospasm of retina,thinning and shortening of macular arteries and venous spiral curves,and all of them disappeared with the decrease in blood vessels. 视网膜动脉痉挛,黄斑部动脉变细变短、静脉螺旋状迂曲,均系功能性改变,随血压下降而消失,动静脉交叉征及静脉驼背属器质性改变,是不可逆的。
- A Quick Solution to a Nonlinear Equation of Spiral Curve 缓和曲线非线性方程的快速解算
- The falling star described a long curve in the sky. 流星在空中画出了一道长长的弧线。
- A large, wild Himalayan goat(Capra falconeri) having a reddish-brown coat, spirally curved horns, and a long mane in the male. 捻角山羊,螺角山羊一种体大、野生的喜马拉雅山羊,(马可山羊),皮毛呈红棕色,角状如弯曲的螺旋,公羊有长鬃
- Military budget continue to spiral. 军费预算继续上升。
- A line segment that joins two points on a curve. 弦将两点用曲线连接起来的曲线段