查询词典 quasi-periodic

In section 4,we research the solvable groups of finite rank,and provethat the union set of all quasi-cyclic subgroups of G is a characteristic subgroup andthe Hirsch number hdoes not exceed n if G is a solvable group of rank n.Inparticular,for an arbitrary solvable torsion-free group G of rank n,we give theupper bound fof the derived length of G.

在第4节里，我们研究了有限秩的可解群，证明了这类群的所有拟循环子群构成它的一个特征子群，且对秩n的可解群G来说，其Hirsch数h≤n，另外，我们给出了秩n的无挠可解群的导出长度的一个上界。

We investigate the distribution of charge density and spin density in an interchain coupled quasi-one-dimensional organic ferromagnet.

对具有链间耦合的准一维有机铁磁体系统的电荷密度和自旋密度的分布进行了研究。

The government and "Daiwei" take advantage of the quasi-market mechanism to provide abundant chargeable goods.

政府和公营事业部门可采用准市场机制供给大量的可收费产品。

The results of calculation and preliminary experiments show that the quasi-collimating light with the low diffuse angle and small chromatism can be obtained when the parameters are chosen appreciatively.

实验结果表明，选择合适的参数，可获得发散角小于±10°的近准直光，该种准直器可满足扩展液晶显示器视角对准直背光源的需求。

The operator of crossover, mutation and selection in HGA have function of macroscopically search, that deals with a large scale search, while the quasi-Newton operator has function of local search, and deals with a small circle search and problem of accelerating of search.

混合遗传算法中交叉算子、变异算子和选择算子的作用是宏观搜索，处理的是大范围搜索问题，而拟牛顿算子迭代运算的作用是局部搜索，即微观搜索，处理的是小范围搜索问题和搜索加速问题。

For finding out to agree with a point in the social responsibility of the business enterprise and the circulation the economic lawmaking, this selected works takes a market quasi- go into the system,manufacturer responsibility extension system,circulation economy evaluation the index sign system system,economic incentive system,the environment risk guard against system and across the profession coordination system to discuss how to enhance the business enterprise path of social responsibility in the circulation the economic lawmaking.

为了在企业的社会责任与循环经济立法中找到契合点，本文选取市场准入制度、生产者责任延伸制度、循环经济评价指标体系制度、经济激励制度、环境风险防范制度和跨行业协调制度，以论述如何在循环经济立法中强化企业社会责任的途径。

In fact, the role of the smoke bomb is dropsignificantly, first of all, as long as everything dare to smoke into the Buddies, we see the results are very clear, close-in time than the semi-transparent Buddies much easier to tell you a guarantee A quasi-hit.

其实烟雾弹的作用是大大滴，首先，凡事只要敢进到烟雾里的鬼鬼我们看到的效果都非常明显，在近距离的时候比半透明的鬼鬼要容易分辨得多保证你能一打一个准。

The study includes the fuzzy independent set, fuzzy bases, fuzzy circuits, fuzzy rank, fuzzy hyperplanes, fuzzy closure operator, fuzzy submatroid, quasi-fuzzy graph matroids, fuzzy graphic matroids, fuzzy dual matroid and so on.

研究的内容包括模糊拟阵的独立集，模糊基，模糊圈，模糊秩函数，模糊超平面，模糊闭包算子，模糊子拟阵，准模糊图拟阵，模糊图拟阵，模糊拟阵的对偶和模糊拟阵的运算等等。

The study includes fuzzy bases, fuzzy circuits, fuzzy rank function, fuzzy hyperplanes, fuzzy closure operator, fuzzy submatrods, quasi-fuzzy graph matroid, fuzzy graphic matroids, fuzzy dual matroid and so on.

研究的内容包括模糊拟阵的模糊基，模糊圈，模糊秩函数，模糊超平面，模糊闭包算子，模糊子拟阵，准模糊图拟阵，模糊图拟阵，模糊拟阵的对偶等等。

Based on the quasi-dimension combustion model, the emission model is set up in this dissertation. The NO emissions in different conditions of LPG engine can be simulated and calculated by the model. The calculated results show that the NO emissions are larger influenced by ignition timing and less influenced by compression ratio, finally, choosing a right coefficient of excess air will have great effect to reduce NO emissions.

本文在建立的准维燃烧模型基础上建立了排放生成模型，利用该模型对液化石油气发动机在变参数情况下NO的排放生成情况进行了模拟计算，计算结果表明点火提前角对NO的生成影响较大，压缩比对NO的生成影响较小，而选择合适的过量空气系数更是对降低NO的生成起着关键作用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。