查询词典 symmetry

The innovation has symbiosis of risk and opportunity, symmetry of risk and the income.

创新具有风险与机会的共生性、风险与收益的对称性。

The cranking term breaks the time reversal symmetry, and the projection of the single-particle angular momentum on the intrinsic symmetric axis is no longer a good quantum number.

推转项的引入破坏了时间反演对称性，单粒子角动量在内禀对称轴上的投影量子数已不再是好量子数。

In this paper we separate the Hamiltonian into three parts: a spherical symmetry Hamiltonian; a z-component of the angular momentum operator, and a non-spherical symmetric potential as the perturbation operator, and provide a propose method by separating the potential containing squared magnetic field B^2 into two parts spherical symmetric and non-spherical symmetric ones so that the first-order energy correction due to the non-spherical symmetric potential is zero, and the second-order correction due to B^2 can be obtained by a simple variational method.

采用变分法和微扰法相结合的方法，把高强度磁场中氢原子的哈密顿H分为三部分：球对称哈密顿；z分量角动量算符相应部分和非球对称势微扰，并用一种特别规定的分解法将哈密顿H中含磁场平方项的势能分解为球对称与非球对称两部分，且使非球对称部分引起的一级修正能量值为零，并采用一种简便的变分法直接求出B^2对能级的二级修正值。

Based on the new systematic classifications of S-O positional exchange in Chinese simple sentences, this paper, from the perspective of symmetric relation of mutuality, proposes a new explanation of semantic symmetry that the subject and object in SVO structure can be exchanged if they are two things which are semantically symmetric and the common semantic element in such sentences is the mutually symmetric semantic relation.

相互关系是一种对称性关系，从这个角度入手，主宾可互易的存现句、某些表心理感知类语义的以及表分配类的句子都可纳入相互关系义句，这样主宾互易现象从相互关系这种对称性语义关系角度就有了新的解释－语义上具有对称性关系的两个事物表现在主动宾结构中的主宾位置是可以互易的，这些主宾互易句里的共同语义因素就是相互对称性关系语义。

The fact that our world does not behave perfectly symmetrically is due to deviations from symmetry at the microscopic level.

事实上，我们的世界并不完全对称的行为是由于偏离对称性在微观水平。

For convenience of finite element discretization and preserving symmetry of the stiffness matrix, approximation and symmetrization of the continuum equilibrium equations were conducted.

为了便于进行有限元离散化并保持总刚度矩阵的对称性对连续介质平衡方程进行了简化和对称化处理。

The operation efficiency of symmetry solution is obviously priors to whole solution.

在有限元法中，不论是理论研究还是应用研究，通常要就其收敛性和对称性问题的有

After the balance and symmetry on operation function is realized with unsymmetrical structure, the transformer can be made not only for BT power supply, but also for AT power supply, which can meet the requirement of 2-phase power-supply system.

行功能上的平衡与对称，它既可制造成用于铁路电气化"BT"或直接供电方式供电的产品，又能制造成按"AT"供电方式的产品，可满足两相制供电的要求，能有效减小零序和负序电

Second the characteristicsSingle-stage single suction in-line centrifugal pump of Roots vacuum pumps: comparison with other oil seal vacuum pumps have the following characteristics: 1 in a wide pressure range with a large pumping speed; 2 the rotor has a good geometric symmetry it is vibration smooth operation.

二、罗茨真空泵的特点：与其它油封式真空泵相比有以下特点： 1、在较宽的压力范围内有较大的抽速； 2、转子具有良好的几何对称性，故振动小，运转平稳。

The artist named this exhibition "Symmetry: Operation on Mountain", over ninety paintings are presented in five groups, titled Operation on Mountain I-V respectively.

我看青山多妩媚，料青山看我应如是作者将画展命名为《对称系列--移山》，90多幅作品分归五组，区别为移山之一至五。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。