In a multigraph both multiple edges and multiple loops are allowed; a loop is a special edge . 在重图中允许有重边和重自环,自环是一种特殊的边。
Systematic design of nth - order multiple loop feedback lowpass filters 阶多环反馈低通滤波器的系统设计
Multiple loop fire alarm control unit 多路火灾报警控制器
Based on a parallelogram linkage , a kind of metamorphic mechanisms is introduced which are constructed by extending the linkage to multiple loops 摘要利用平行四边形机构在共线位置时的特性,以平行四边形机构为基本单元,采用迭加法综合出一系列平行四边形组合变胞机构。
3 . when = 0 , we give the curve of the multiple orbit bifurcation in the parameter plane ( , l ) . and we prove that the bifurcation of multiple loop is a double orbit bifurcation and the curve is convex 3 、当= 0时,在参数平面上( , l )给出重闭轨分支曲线并证明该重闭轨分支为二重闭轨分支,且该分支曲线是上凸的。