1) convex impedance cylinders
凸阻抗柱
2) impedance cylinder
阻抗圆柱
1.
The electromagnetic scattering mechanism of a two-dimensional impedance cylinder is investigated and the equivalent formats between a perfectly conducting cylinder, a dielectric coated cylinder and a impedance cylinder are given.
本文分析了二维阻抗圆柱的电磁散射机理，讨论了金属圆柱、有耗涂层圆柱与阻抗圆柱的等效特性，获得了它们的散射场一致性绕射理论（ＵＴＤ）解。
3) impedance cylinders
阻抗型圆柱群
1.
Wave diffraction around a group of impedance cylinders;
波浪对阻抗型圆柱群的绕射
4) concave boss
凸柱
1.
It has the features that not only the geometries of the workpiece can be formed,local structures like concave bosses can also be formed in one process step.
板材局部体积成形技术,或称为板材热冲锻成形技术,为近年来提出的一种板材零件成形方法,其特点是板材冲压成形时不但完成板材零件形状的成形,还兼有局部结构的体积成形,例如局部凸柱、凸台、凸筋等结构的成形,适合于成形镁合金、铝合金等金属的成形,尤其适于替代一些电子器件外壳的铸造加工产品。
5) cylinder cam
圆柱凸轮
1.
Study and practice of machining cylinder cam by means of plain work-piece programming;
利用平面工件编程方法加工圆柱凸轮的实践
2.
The three element complex is regarded as a mathematic modeling tool in this paper and it is,directly,used to the profile design of cylinder cam mechanism with a follower of straight-line motion by means of the vector method.
本文以三元复数为数学建模工具,直接运用矢量方法设计圆锥滚子直动从动件圆柱凸轮机构的几何轮廓,将一个复杂的空间曲面的设计问题转变成简易的数学计算问题。
3.
The method in automatic computer aided programing and computer aided manufacturing of cylinder cams, which have been widely used in industry, mechanism, has been researched and utilized.
对轻工机械中常用的圆柱凸轮进行了计算机辅助编程与制造。
6) scoliosis
[英][,skəuli'əusis] [美][,skolɪ'osɪs]
脊柱侧凸
1.
Research advance in effectiveness of bracing for adolescent idiopathic scoliosis;
支具治疗青少年特发性脊柱侧凸有效性的研究进展
2.
The study of axis-line-distance technique in assessing the curative effect of scoliosis;
中轴线距离法在脊柱侧凸疗效评价中的应用
3.
Comparison of results between allograft and autograft for treatment of scoliosis in the adolescent;
同种异体骨与自体骨移植治疗青少年脊柱侧凸的比较研究
补充资料：星接阻抗和三角接阻抗的变换
星接阻抗和三角接阻抗的变换
transformation between starc-onnected and delta-connected impedances
x ing]一e乙日kongl介e sonJ一00}Iez日伙ongde匕一。一〕huon星接阻抗和三角接阻抗的变换(t ransfor-mation betweenstar一eonneeted and delta-eonneeted imPedanees)接成星形的三个阻抗和接成三角形的三个阻抗互相替代的等效变换。它们之间的关系可用一组变换公式表示。按这组公式，用星接阻抗替换三角接阻抗或者反过来，不会影响稳态下电路其他部分的正弦电压和电流，常用于对称三相电路的分析和计算。 图1为三个阻抗21、Z:、23接成星形(又称丫形)。图2为三个阻抗Z小22。、Zal接成三角形(又称△形)。它们之间的变换公式如下:人23土图1星接阻抗图2三角接阻抗(1)将星形连接变换成三角形连接212一Z:+22+2 122及3一22+za十警(1)、|冬|矛231一23+21+2321(2)将三角形连接变换成星形连接z、-二一典乒兴-) 艺‘2士乙“3十乙31…_2 oqZI，}Z。一下万~一二-二二-汁 乙‘2士乙23十乙3‘1_Z。IZoq}艺q一二二一~二，二二--，-二二-~J 乙12十乙23十艺32夕(2) 当三个星接阻抗相等，即21一Z:一23一z丫、三个三角接阻抗相等即212一223一231一Z△时，变换公式是 Z二一32丫，Z丫一Z△/3
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条