1) hard-edged parallelogram aperture
平行四边形光阑
1.
By using the method of expanding the aperture function into a finite sum of complex Gaussian functions, approximate closed-form propagation equations of TMn0-Gaussian beams diffracted by hard-edged parallelogram apertures are derived.
通过将硬边光阑函数展为复高斯函数之和的方法,在直角坐标系下研究了TMn0模高斯光束通过有平行四边形光阑的衍射,得到了近似的解析传输公式。
2) parallelogram
[英][,pærə'leləɡræm] [美]['pærə'lɛlə'græm]
平行四边形
1.
Extending of parallelogram mechanism and its application;
平行四边形机构的拓展及其应用
2.
Formulation of C_1 Conforming Parallelogram Thin Plate Element;
C_1阶协调平行四边形薄板单元的构造
3.
This paper has put forward three sections of parallelogram、erect traperzium and hollow rectangle,in order to resolve this problem.
冲天炉炉胆径向胀裂问题,也是一道颇有难度的课题,本文提出:用平行四边形、竖立的梯形和微凹矩形三种炉壁断面作为防止措施。
3) parallelogram section
平行四边形断面
4) anisotropic
[英][æn,aisə'trɔpik] [美][,ænaɪsə'trɑpɪk]
平行四边形板
1.
The accurate analytical-type solutions are obtained by Fourier series for the free vibration, the buckling and the bending of anisotropic skew plates with free edges subjected to uniformly distributed in-plane normal and shear forces.
得到了有自由边的各向异性平行四边形板在面内张力和剪力作用下自由振动、屈曲和弯曲问题的精确解析解。
2.
A comprehensive study of free vibration, buckling and bending of anisotropic simply-supported skew plates subjected to in-plane normal and shear forces is conducted.
对简支各向异性平行四边形板在面内张力和剪力作用下自由振动、屈曲和弯曲问题作了全面的研究。
3.
The accurate analytical solutions are obtained for the free vibration,buckling and bending of anisotropic skew plates with various boundary conditions resting on elastic bases.
给出了弹性地基上四边支承的各向异性平行四边形板在面内张力和剪力作用下自由振动、屈曲和弯曲问题的精确的解析解。
5) parallelogram mechanism
平行四边形机构
1.
Dynamics modeling of low-speed maglev train and analysis of the parallelogram mechanism
低速磁浮车动力学建模及平行四边形机构分析
2.
The principle of the detecting system with parallelogram mechanism is presented,and the detecting results of scrape wheel are achieved through test and data processing.
简述了检测车轮踏面擦伤状态的重要性、擦伤定义及标准,介绍了平行四边形机构检测系统的检测原理,并通过试验和相关数据处理得到擦伤车轮检测结果,最后用MATLAB编写算法实现擦伤信号的判定且进行了算法的误差分析。
3.
The parallelogram mechanism can move flexibly when the two teams of substance are the same respectively.
平行四边形机构的两组对边分别相等,以保证机构不别劲,运动灵活。
6) parallelogramic stope
平行四边形采场
1.
A method of back sublevel filling stoping with parallelogramic stope structure is thus proposed,which is investigated numerical simulation using the 2D-σ software for finite element analysis.
在分析分段充填法的应用现状及存在问题的基础上,以鲁中冶金矿业集团公司莱新铁矿为背景,综合考虑采场矿岩冒落特征,尽可能提高回采效率和爆破效果,避免采准巷道布置在充填体内等因素,提出了平行四边形采场结构的上行分段充填采矿方法,应用2D-σ有限元程序对其进行了数值模拟研究。
补充资料：反平行四边形
反平行四边形
anti - parallelogram
反剩于四边形lanti~pa面lel傀”叨;娜翻叫拜阴e‘侧1.MM{ 一个平面四边形，其中每对对边分别等于另外两边，并且关于另外两边是反平行的(见反平行线(ant卜Parallel straigllt lines)).
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