查询词典 modular matrix

Before we move on to matrix types, it's important to understand the concept of an identity matrix.

在开始讲各种矩阵之前，要理解一个非常重要的概念，单位矩阵。

When a matrix causes no transformations, you have what is known as a unit or identity matrix.

当一个矩阵的作用没有产生型变时，我们把这个矩阵叫做单位矩阵

Based on a brief review on developments of number system, a new developed pattern is proposed. The quaternion is extended to a matrix form aI+bA+cB+dC, in which the identity matrix I and three special matrices A, B, C correspond to number 1 and three units of imaginary number i, j, k, respectively.

在数系发展的基础上，提出了一种新的发展模式：四元数推广为矩阵形式aI+bA+cB+dC，其中单位矩阵I和3个特殊矩阵A，B，C分别相应于数1和虚数单位i，j，k。

The CDMA type signals may also be processed using a pre-coder incorporating a Discrete Fourier Transformer matrix or Identity matrix to reduce the Peak-to-Average Power Ratio across the OFDMA system.

也可以利用并入离散傅立叶变换器矩阵或单位矩阵的预编码器来处理CDMA型信号，以降低OFDMA系统中的峰均功率比。

The resulting linear system, the coefficient matrix of which is, typically, a 2 x 2 block symmetric or non-symmetric and singular or non-singular indefinite matrix, is of high order and ill conditioned. In order to solve such system we have to use iterative methods with fast convergence speed.

所得的离散方程组（其系数矩阵典型地是 2 x 2 块对称或非对称，奇异或非奇异的不定矩阵）是高阶和病态的，为了求解这样的方程组我们必需使用快速收敛的迭代方法。

Glass fibers increase the impact toughness of brittle matrix, but reduce the impact toughness of ductile matrix.

复合材料的断裂破坏机理也因界面粘合的差异而不同，而表现出不同的断裂形貌。

Product principle of this device is the use of high-frequency discharge welding Materials technology will instantly melt infiltrated matrix material, a new technology, because it is instantaneous discharge, do not produce heat, the metal matrix without any impact on organizations.

产品原理本设备是利用高频放电技术将焊补材料瞬间熔渗进基体材料的一种新型工艺，由于是瞬间放电，不产生热量，对基体金属组织无任何影响。

In an impact matrix printer, it may also be termed a "needle" or a "wire" and in an electrosensitive printer or thermal matrix printer, an "electrode".

在击打式点阵打印机中，它或许也可叫作"针"或"细棒"，而在电火花打印机或热点阵打印机中则叫作"电极"。

The surface disposal method of the invention solves the problem that the connecting type of existing microcapsule and resin matrix leads the tensile strength and impact strength of the resin matrix to be obviously reduced with the increment of adding quantity of the microcapsule.

本发明解决了现有微胶囊与树脂基体之间的连接方式使树脂基体的拉伸强度和冲击强度随着微胶囊加入量的增加显著下降的问题。

The evaluation criteria for aircraft survivability are proposed from the two aspects of susceptibility and vulnerability, and the effects of aircraft survivability technologies on the evaluation criteria are analyzed in a technology impact matrix. The bargaining weight method is proposed to calculate the weighting factors of the evaluation criteria, and the impact matrix is used to evaluate the effects of survivability technologies on aircraft survivability enhancement.

首次从敏感性和易损性两个方面提出了飞机生存力的评价指标体系，构建了生存力设计技术对评价指标的影响矩阵；用协商定权方法确定各评价指标的权重，并通过影响矩阵评价生存力设计技术对提高生存力的作用。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48