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The ellipse rotating symmetric group is proposed,which is an Abelian group .

提出椭圆旋转对称群,它是一个单参数阿贝尔群。

Secondly, it has drawn out the pointed YD-Lie algebras definition, in the category of Yetter-Drinfeld modules, let Z be a torsion-free abelian group, if we have a symmetric braiding c, for each G-graded algebra V over the G-graded space, a new Lie superalgebra with an operation _c satisfying an actions, then we can obtain a new Lie superalgebra, this paper to call it pointed YD-Lie algebra.

其次引出了点YD-李代数,即:在Yetter-Drinfeld模范畴中,对任意的一个G-分次代数Z(G为无挠群V,引入对称辫子c后,在V内作_c运算,即可得到一种新的李代数(本文称之为点YD-李代数)。

The absolute value sign on each even-order term in δforces Fe to be antisymmetrical about δ=0,assuring that the restraint stiffness is the same for loading and unloading.

绝对值签署每偶数阶任期δforces铁将反对称约δ=0 ,保证刚度克制是相同的装货和卸货。

Suppose Y is an absolutely continuous random variable symmetric about 0 with probability density function f and cumulative distribution function F.

假设Y是一绝对连续且对称於0的随机变数,其机率密度函数为f,而分布函数为F。

I offered the relativity of symmetry and absoluteness principle. I wonder whether I am all right.

笔者根据相对绝对论和现代科技理论提出了对称的相对性与绝对性原理,不知是否正确?

The superposition is formed between the bound state and the autoionization state for the intense Rabi frequencies. The population of symmetric superposition is the same to that of asymmetric superposition, and the both are modulated by the delay tune.

由于中间激发态和自电离态之间的Rabi频率较大而形成了叠加态,对叠加态的分析显示,粒子在对称叠加态和反对称叠加态上的布居完全相同,并且受到延迟时间的调制。

The applications of various organocatalysts in asymmetric Diels-Alder reaction and the asymmetric induction mechanism are reviewed in this paper. Contents

本文对各类有机催化剂在有机催化不对称Diels-Alder反应中的应用研究进展,以及不对称诱导反应的机理进行了评述。

According to the result of asymmetric Diels-Alder reaction of phenyl-sulfonyl a , P-unsaturated ketones and cyclopentadiene catalyzed by chiral Titanium catalysts and the structure of crystal, we discussed the mechanism of asymmetric Diels-Alder reaction.

根据苯磺酞基取代的a,p一不饱和酮与环戊二烯在钦手性金属催化剂存在下的不对称Diels一Alder反应的结果以及我们测得的单晶结构,初步探讨了不对称催化Die1S一Alder反应的机理。

The Research about the Synthesis of Phenylsulfonyl α,β-unsaturated Ketones and Their Applications in Asymmetric Diels-Alder Reaction Catalyzed by Lewis Acid and Chiral Titanium Reagents.

苯磺酰基取代的α,β-不饱和酮的合成及其在不对称催化Diels-Alder反应中的研究中文名称:苯磺酰基取代的α,β-不饱和酮的合成及其在不对称催化Diels-Alder反应中的研究

In Chapter 4, we study the Lagrange stability for two asymmetric non-conservative systems.

在第四章中,突破了这样的限制,不要求系统对于位置变量是对称的,证明了非对称的非保守系统解的Lagrange稳定性和大振幅的拟周期解的存在性。

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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。