1) transitive point
传递点
1.
We consider the hyperspace(K,d) of all non-empty compact subsets of X endowed with the Hausdorff metric d,we will show that for any compact totally disconnected subset Z,there exists some K in K such that Z is homeomorphic to K and K is a transitive point.
我们将证明对任意紧致、完全不连通集Z,都存在(K,d)中一个与Z同胚的元K,且K是传递点。
2) vertex-transitive graph
点传递图
1.
In this paper,we prove that a connected cubic vertex-transitive graph of order 2p~2(p a prime)is either a Cayley graph or isomorphic to the generalized Petersen graph p(p~2,t), where t~2≡-1(mod p~2
一个图称为点传递图,如果它的全自同构群在它的顶点集合上作用传递。
2.
In fact, researching the symmetry property of the Coset graph is more significant than the Cayleygraph, because every vertex-transitive graph is always some Coset graph of its full automorphism group.
关于陪集图对称性的研究其实较Cayley图更具有普遍的意义,因为任何一个点传递图都是其全自同构群的某个陪集图。
3.
In fact, researching the symmetry of Sabidussi coset graphs has more general significance than doing so for the Cayley graph because every vertex-transitive graph is always some coset graph of its full automorphism group.
关于陪集图对称性的研究其实较Cayley图更具有普遍的意义,因为任何一个点传递图都是其全自同构群的某个陪集图。
3) transmission zeroes
传递零点
4) vertex-transitive
点传递
1.
Firstly,we obtain some equivalent characterization for Cayley graphs of completely simple semigroup which is vertex-transitive.
得到了完全单半群的Cayley图的弱点传递性的等价条件,给出了半群的Cayley图是自同构弧传递的充分必要条件,特别地,完全刻画了带的Cayley图的自同构弧传递条件。
2.
Secondly,we give a sufficient condition for the cyclic optimality of vertex- or edgetransitive graphs,that is:any connectedκ-regular vertex-transitive graph with k≥4 and girth at least five is cyclically optimal;any connected edge-transitive graph with minimum degree at least four and order at least six is cyclically optimal.
本论文分别给出点传递图和边传递图是最优圈边连通的一种充分条件,即:任意一个连通κ-正则点传递图若满足κ≥4且围长g≥5,则它是最优圈边连通图;任意最小度δ(G)≥4且点数n≥6的边传递图是最优圈边连通图。
5) point-transitively
点传递
1.
If Sz(q)≤G≤Aut(Sz(q)),where q=22n+1,then G cannot act point-transitively on S.
若对某q=22n+1,使Sz(q)≤G≤Aut(Sz(q)),则G不能点传递地作用于S上。
2.
It is proved that if Soc(G)=Ree(q),where q=32n+1 and n>0,then G cannot act point-transitively on a finite projective plane.
如果G≤Aut(D)且Soc(G)=Ree(q),这里q=32n+1,n>0,则G不能点传递作用在D上。
6) Weakly vertex transitive
弱点传递
补充资料:闭式单点、双点压力机
| |||||||
主要参数内容 | 国际先进 | 国内先进 | 国内一般 | 国内落后 | 评定方法及说明 | ||
(一)加工精度 | 参照GB10924-89、GB10933-89、JB5200-91 | ||||||
1、滑块下平面对工作台上平面的平行度(mm) | 30%精度储备 | 20%精度储备 | 达到规定值 | 大于规定值 | |||
0.02+0.10/100×滑块下平面的被测长度 | |||||||
2、滑块行程对工作台上平面的垂直度 | 30%精度储备 | 20%精度储备 | 达到规定值 | 大于规定值 | |||
0.05+0.02/100×滑块行程长度 | |||||||
(二)结构性能 | |||||||
1、离合器、制动器接通率,当滑块行程次数≤16次/分时为70%,≤25次/分时为60%,≤45次/分时为50% | 大于规定值10% | 大于规定值 | 达到规定值 | 达不到规定值 | |||
2、液压超负荷保险装置、微调装置、吨位指示器 | 全部具有 | 全部具有 | 部分具有 | 没有 | |||
(三)噪声dB(A) | |||||||
1、公称力≤400kN | ≤85 | ≤87 | ≤88 | >88 | |||
2、公称力>400kN | ≤87 | ≤88 | ≤90 | >90 |
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