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- The kinematic relationship between the wheel and the cutter is analyzed.An algorithm of computing tool path for grinding helical curve cutter with CNC ginder is given. 分析了砂轮与刀具前刀面之间的相对位置关系，给出了数学模型，提出了数控磨削螺旋刃刀具刀位轨迹生成的实用方法。
- This paper introduced setting up the parametric expressions, and how to creating the helical curve and unwrapping the curve on the plane based on UG by the parametric unwrap equation of concrete-mixer drum logarithm helical curve. 推导出搅拌运输车搅拌筒对数螺旋线平面展开方程,用UG的参数表达式来实现螺旋线和在平面上展开曲线的生成。
- 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。
- concrete- Mixer drum helical curve 搅拌罐螺旋线
- Non-equiangular logarithm helical curve 非等变角对数螺旋线
- 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.
- 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。
- Complicated helical curved surface 复杂螺旋曲面
- 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
- Military budget continue to spiral. 军费预算继续上升。
- Parametric Expression Design of Concrete-mixer Drum Helical Curve and its Unwrapping Based on UG 搅拌筒螺旋线平面展开方程及基于UG的参数化表达式
- Military budgets continued to spiral. 军事预算继续急遽增加。
- A snail's shell is spiral in form. 蜗牛壳是螺旋形的。
- Keywords Silk loom, let-off mechanism, ratchet gearing, Free-wheeling clutch, Logarithm helical curve; 丝织机;送经机构;棘轮机构;超越离合器;对数螺旋曲线（面）;
- 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
