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- principal radius of curvature 主曲率半径
- An expression is derived for the conductance of an electrical contact including the effects of thin films, material properties, principal radii of curvatures and principal directions of axes. 本研究先推导粗糙表面覆盖薄膜之总电导表示式，包含覆盖膜、材料性质、粗糙峰主曲率半径及主轴方向，再应用此式分析粗糙峰金属-膜-金属之接触。
- Roundness depends on the sharpness or radius of curvature of the edges. 浑圆度取决于边角的锐度或曲率半径。
- The radius of curvature of the highlighted face is too small for blend to fit. Try a smaller blend radius using Info/Minimum Radius. 如果因为面的曲率半径太小而不能创建圆角，则会发生以下错误。高亮显示有问题的面。
- The experimental results showed that the ultrasonic rangefinder doesn't fit to explore the circular surface of small radius of curvature. 实验结果表明，超声波测距仪不适合曲率半径小的圆弧曲面探测。
- Especially, it is more effective in situations that the radius of curvature of the waveguides and the refractive index of materials are set beforehand. 尤其是在弯曲光波导曲率半径、材料折射率等参数被设定的情况下，该种设计方法成为一种有效的设计方法。
- This paper calculates the radius of curvature of lens exactly by using average method to measure the diameter of Newton s rings. 本文通过用平均值法测定牛顿环的直径,解决了牛顿环直径测不准的问题,从而精确地计算出透镜的曲率半径。
- A concise deflection model for piezoelectric cantilever microactuators is derived using the radius of curvature of piezoelectric multilayer cantilevers. 摘要利用压电多层膜悬臂梁的形变曲率半径，导出了简洁的压电悬臂梁型微执行器的偏转模型。
- Aspherical lenses are lenses with complex curved surfaces, such as where the radius of curvature changes according to distance from the light beam axis. 所谓非球面镜是具有复杂曲面的透镜,诸如其上每点的曲率随着到光轴的距离不同而变平缓。
- Natural Parameter Method is a kind of new method of wellbore trajectory computation succeeding Cylinder Helix Method(Radius of Curvature Method) and Minimum Curvature Method. 自然参数法是继圆柱螺线法和最小曲率法之后提出的一种测斜计算新方法,在井眼轨迹设计与计算中有着广泛的用途。
- JI Hong, SONG Xin-jiang.Method for calculating least value of curvature radius of e-lgp curve[J].Water Resources and Hydropower Engineering, 2001, 32(10):46-47. [3]姬宏;宋新江.;e-logp曲线中曲率半径最小值的数值求法[J]
- It is now necessary to introduce a sign convention for radii of curvature. 现在必须介绍曲率半径的正负号规则。
- The numerical calculation results show that the gas velocities increase with the reduction of curvature and the length of laval nozzle decreases with the increase of the radius of curvature. 数值计算表明，气体速度随入口段曲率半径的增大而增大，拉伐尔喷嘴和长度则随曲率半径的增大而减小。
- Start with increasing the clearance of impeller outer diameter &volute tongue and radius of curvature,the specific denoising measures on structural design of centrifugal fan are set forth. 从增加叶轮外径与蜗舌的间隙和增加蜗舌曲率半径入手,阐述了离心通风机在结构设计上降噪的具体措施。
- Applying an electric field to the actuator creates changes in fluid pressure in the fluidic channel, which in turn changes the radius of curvature (i.e., focal length) of the fluidic microlens. 向致动器施加电场产生射流通道内流体压力的变化，这样又改变了射流微透镜的曲率半径(即焦距)。
- Bend the length and radius of curvature 弯管的长度和曲率半径
- There are three lakes within a radius of five miles. 周围五英里之内有三个湖泊。
- To take another example, elliptic geometries with different radii of curvature have isomorphic automorphism groups. 在举一例，不同曲率半径的椭圆几何有同构的自同构群。
- The radii of curvature are generally large in order to achieve adequate range of vision. 半径曲率一般都是大，以达到足够的视线范围。
- radius of curvature of the earth 地球曲率半径
