查询词典 polycycle

The third chapter discusses and proves Il"yashenko"s Theorem, that is, if every vertex on the polycycle of an analytic vector field in the real plane is hyperbolic, then limit cycles cannot accumulate on this polycycle.

第三章详细讨论和证明了Il'yashenko定理，即平面解析向量场的多边环上每一顶均为双曲奇点，则此多边环附近不能结集无限多个极限环。

The last chapter talks about the H"yashenko"s two-side cycle theorem, that is, every two-side cycle of an analytic vector field in the real plane is the finite polycycle. The quadratic finiteness theorem is a direct corollary of this theorem.

最后一章介绍了Il'yashenko两边形定理，即实平面上解析向量场的任一两边形均为有限多边环，这个定理的直接推论便是二次系统的有限性定理。

The second chapter discusses and proves the Revised Dulacs Theorem, that is, if a polycycle of an analytic vector field has a monodromy map, then there is a semi-transversal for which the monodromy map is either flat, semi-regular, or the inverse of a flat.

第二章详细讨论和证明了修正的Dulac定理，即解析向量场的单一多边环，可选取一适当半匀断，使相应的单一变换芽或为平坦芽，或为半正则芽，或为平坦芽的逆。

One is that,by the shove of passive rift valley polycycle,quartz sandstone with high maturity of lithologic composition deposits on the background of sub-plain during sag period;together with the rock formation environment of paranormal saltless local water,the reservoir characterized b.

厘定该盆地这种突出商业价值的地质因素主要表现在以下两个方面：1被动裂谷的多旋回推移，在坳陷期的准平原背景下沉积了高岩石成分成熟度的石英砂岩，加之超淡地层水的成岩环境，最终形成盆地的高孔高渗储层；2&教科书&式的生储盖组合。

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜，这支南方球队将会更坚持其一贯而有效的4-3-3阵型，洛佩斯和塞德维奇将取代受伤缺席的詹保罗，和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外，西方较自由的生活方式对年轻人的影响增大。