查询词典 symmetric

The pieces of the pattern are not symmetric and equal when the 3 dihedral angle errors are different.

采用3个二面角误差基本接近且绝对值较小的棱镜可以提高光束质量。

Novel synthetic methods for alkyl methyl ketone, symmetric diketone , long-chain diketone and macrocyclic ketone were provided.

利用二苯并咪唑盐与格利雅试剂的加成-水解反应，提出了长链二酮的新合成方法。

EDD and NEDD of external iliac artery in vivo (measured with high-resolution ultrasound), serum lipids, NO, NOS, plasma ET, ADMA, symmetric dimethylarginine and L-arginine, the area of AS plaque in thoracic aorta (dyeing with Sudan Ⅳ), the degree of AS lesion in abdominal aorta and external iliac arteries, NOS activity on the wall of the abdominal aorta, the expression of iNOS mRNA and eNOS mRNA on the wall of the abdominal aorta and the contractive and dilatant functions of abdominal aorta and external iliac arteries in vitro; B. the activities of dimethylarginine dimethylaminohydrolase in kidney (including the establishment of the determining method). 3. In the third part of the study, normal aorta strips were used. The following were surveyed: their response to using ADMA alone, influence of treating with ADMA, intervention of polydatin, influence of using ADMA and PD together on Emax and Kd that were contracted by PE.

第5组为未给药组。2、观察指标：A、各组髂外动脉EDD和NEDD、血脂、血清NO和NOS活性、血浆ET、ADMA、SDMA和L-精氨酸水平、胸主动脉AS斑块面积、腹主动脉和髂外动脉AS病变积分、腹主动脉壁NOS组织化学染色和eNOS mRNA和iNOS mRNA表达及离体腹主动脉与髂外动脉舒缩功能。B、各组兔肾DDAH活性。3、离体做正常主动脉条对单用ADMA的反应、PD和ADMA对PE收缩效应的影响及PD预处理对受ADMA作用的正常主动脉条PE收缩反应的影响(包括对Emax和Kd值的影响)。

The physical solutions of the Dirac equation with non-zero rest mass are found outside the event horizon of general spherically symmetric and charged evaporating black hole.

引 言自从Balbinot研究了考虑到反作用时的蒸发黑洞的Hawking辐射以来，这一研究领域引起了国内外理论天体物理学家的极大兴趣[1 5]。

In this paper, we mainly use complex semisimple algebras knowledge. First, we give the structure formula of C. Second, we show that any n x n symmetric matrix A is congruent under the symplectic group to the direct sum of a identity matrix and a tridiagonal matrix.

记正交代数和辛代数的交集构成的李代数为L，本文主要是运用复半单李代数的知识，首先给出了L的结构公式，然后给出了任一n×n对称矩阵A辛合同于一个单位矩阵和一个三对角矩阵的直和。

A parallel algorithm for certain real symmetric block-tridiagonal linear systems on distributed-memory multicomputers is proposed. This algorithm is based on the block factorization of the coefficient matrix. This algorithm is used to solving the block-tridiagonal linear systems resulted from the finite difference approximation to Poisson's equation with Dirichlet boundary conditions. Then we get a parallel algorithm which speedup tends to linear speedup.

7研究了一类实对称块三对角线性方程组的分布式并行求解，提出了一种基于块矩阵分解的高效分布式并行算法，将其应用于求解带Dirichlet边界条件的Poisson方程导出的块三对角线性方程组，得到加速比趋于线性加速比的分布式并行算法，理论上说，这也是并行算法的理想情况。

We also assume that a symmetric disconnection model is used, with the client going first.

我们也假定采用了对称的连接释放模型，并且由客户先释放连接。

The authors used gravity gradient anomalies to interpret the Southwest sea basin of the South China Sea and obtained the domal structure plane with the NE-trending spreading axis of the sea basin as the symmetric axis.

本文利用重力梯度异常对南海西南海盆进行了解释，得到大致以西南海盆北东向扩张轴为对称轴的穹隆状构造面。

From the theory and examples, the article points out why in the symmetric block the calculation of the double integral is easy to go wrong and offers some methods to avoid errors.

从理论和实例两个方面，指出了对称区域上二重积分计算中易出现问题的原因，并给出了避免错误的方法。

There is some rumor that NVIDIA is ready to a symmetric response in the form of dual chip video cards based on G92, which is mentioned in several sources, code symbol is D8E.

有一些传闻说， NVIDIA正在准备对称的形式作出答复双芯片视频卡的基础上g92 ，其中提到的几个来源，码符号

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。