零点

In this paper, we mainly disscuss derivable mappings at zero point, Jordan derivations and 2-local derivations on some operator algebras. The details as following:In chapter 1, some notations, definitions are introduced and some theorems are given.

本文主要对几类算子代数上的在零点可导映射和Jordan导子以及2-局部导子进行了研究，具体内容如下：第一章主要介绍了本文中要用到的一些符号，定义以及本文要用到的一些已知结论和定理。

However, for a typical connectivity topology such as the diffusively coupled matrix,λ2 moves closer to the origin, as the number of nodes increases.

然而，对於特有的拓朴连结就像是扩散地耦合矩阵，当节点的个数增加时，λ2对零点越靠近。

The asymptotic estimations of solution of initial value problem are obtained for Dirac equation by use of the transformation matrix operator in this thesis.

本文运用平移算子，得到了Dirac方程初值问题解的渐近估计。构造了一个整函数ω，其零点集合与具有一般两点边界条件的Dirac特征值问题的特征值集合重合。

Oslash; The Blitzcons (Zero, Redshift , Rotorstorm, Spinner, Cutter, Doodlebug and Fletchet), Steadfast and Lancer awaken during World War Two.

强袭金刚（零点，红移，剑风，转轴，剪刀手，蚁狮和集束弹），磐石和长矛于二战中苏醒，旋即被迫停机。

The connection between two different approaches to singular H∞ control problems based on geometric control theory and-lossless factorization theory respectively is established. This paper illustrates the eigenspace structure of singular H∞ control systems.

文中建立了基于几何控制理论和基于J-无损分解理论的两种不同的奇异H∞控制分析方法之间的联系，并揭示了具有无穷远零点的奇异 H∞控制系统的特征空间结构。

It is indicated that the electron affinity is changed by the isotope substitution due to the zero-point vibrational energy effect.

表明这种由于零点振动能效应使得同位交换平衡常数偏离1的现象可以用于富集和分离同位素化合物。

The results of density functional calculations indicate that the enol form E1 is the most stable tautomer at the ground state.

研究结果表明，醇式异构体E1为2-(2-巯苯基)苯并噁唑的优势构型；在E1向K转变过程中，存在一个较小的能垒；当考虑零点振动能后，逆向能垒消失。

If the graph of the function is a consecutive curve at the interval ［ a , b ］ together with , the function has a zero point at the interval. That is, exists and it results in . Therefore, the x o is the root of the equation

结论〗：如果函数在区间［ a ， b ］的图象是连续不断的一条曲线，并且有，那么，函数在区间内有零点，即存在，使得，这个 x o 也就是方程的根。

In this way a minor accident claim can escalate into a claim of 20,000 or more.

这样一个小事故的索赔可升级为索赔二十零点○○○英镑或更多。

In this paper, we study the finite iterated order of growth and the iterated convergence exponent of the zero sequence of nonzero meromorphic solutions of second order homogeneous linear differential equation , and obtain some precision evaluation.

摘要研究了二阶齐次线性微分方程非零亚纯解的迭代级与零点迭代收敛指数，得到了它们的精确估计。

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％。