1) parallelogram base
平行四边形基底
1.
In this paper, some necessary and sufficient conditions of a class of double pyramidal central configuration(DPCC) with parallelogram base are proved.
主要结论有 :SDPCC的平行四边形基底必须是菱形 ,该菱形每条对角线上的两个质量相等 ,该菱形基底两侧的两个质量也相等 ;此中心构型的参数λ满足λ =2m18+ 2m2( 1+r2 ) 32+ 2m5( 1+h2 ) 32λ=2m1( 1+r2 ) 32+ 2m28r3+ 2m5(r2 +h2 ) 32λ=2m1( 1+h2 ) 32+ 2m2(r2 +h2 ) 32+ 2m58h
2) parallelogram bottom surface
平行四边形底面
1.
The design and construction of long-span reinforced concrete roof of hyperbolic paraboloid combined torsion shell roof with parallelogram bottom surface projection are discussed,taking as an example with the South China Technology University Gymnasium in the University City of Guangzhou.
以广州大学城华南理工大学体育馆为例,对平行四边形底面大跨度双曲组合扭壳屋盖结构体系的设计与施工进行探讨。
3) 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。
5) parallelogram section
平行四边形断面
6) 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。
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