The spiral curve structure can be used in slow-wave systems.
螺旋线结构就可以作为慢波系统；
Said spiral blade has a spiral curve extended from the tip of conic body.
另一种是近似圆锥体的母线是向锥体外凸出的曲线。螺旋叶片垂直于锥体表面。
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。
In chapter 3, in order to obtain a fast algorithm of computing the foot point of a given point to a spiral curve, we study the problem of circular spline fitting.
在第三章，为了得到点到空间曲线距离的快速计算算法，我们研究了利用圆弧样条拟合点集的问题。
The paper deduces the calculation formula of parallel sidelines of spiral curve, and proves two characters of parallels sidelines. It can be applied to instruct actual setting-out work.
推导了缓和曲线的平行边线弧长计算公式，证明了平行边线的两个性质，对实际线路测设工作有指导意义。
As the research indicates, the structural parameters of the spiral curve slow-wave systems have complicated influence on its fundamental wave dispersion characteristics and coupling impedance.
研究结果表明，螺旋线慢波系统的结构参数对它的基波色散特性和耦合阻抗影响非常复杂。
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。
Forged part and forming procedure and stroke-load curve obtained from rigid plastic FE simulation further discloses the deformation mechanics of closed die extrusion for spiral bevel driving gear.
刚塑性有限元计算所得的齿轮锻件图、成形过程图、轴向断面网格图和力能曲线进一步揭示了螺旋伞齿轮塑性成形机理；
In local differential geometry, the cylindrical spiral is a very important curve.
在局部微分几何中，圆柱螺线是很重要的一种曲线。
Finally adopts the method of curve fitting to do the logarithmic spiral fitting, and then do a comparative analysis with the standard components after fitting the curve.
最后采用曲线拟合的方法进行对数螺旋线拟合，拟合出曲线后，与标准零件进行比较分析。
Flow velocity of fluid in eccentric spiral rectangular section channels varies in periodical non-linear relation with Angle of curve.
偏心螺旋矩形截面通道中流体速度随转角(弧度)呈非线性周期变化。
The paper provides an optimum method to construct a curve for the design of spiral power springs.
本文还提供了用优化方法得到的线图，供蜗线形发条设计之用。
The spiral mandrel is flexible, so the transmission line can be arranged according to the space curve.
该机螺旋体心轴为可挠曲的，因此输送线路可根据需要按空间曲线布置。
At present, each sectionalization of large-scale spiral case is produced by NC cutting according to the outstretched plane of the curve of the sectionalization.
目前，大型水轮机金属焊接蜗壳各分节大多采用按各分节平面展开线轮廓进行数控切割加工。
At present, each sectionalization of large-scale spiral case is produced by NC cutting according to the outstretched plane of the curve of the sectionalization.
目前，大型水轮机金属焊接蜗壳各分节大多采用按各分节平面展开线轮廓进行数控切割加工。
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