查询词典 triangular matrix

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。

Combined with the investigation of SEM and other methods of interface analysis, we found that in the impact fracture process, matrix deformation, fiber pull out, interface debonding between matrix and fiber, interface friction induced by debonding, new surface appearance and so on all can absorb impact energy.

此外，研究还发现G系列坯料即使烧结至1500℃，在熔剂的配入量达不到50%情况下无法烧结，这一试验结果能用颗粒体随机堆积气孔率和本文提出的聚合体颗粒堆积的分数维结构模型得到解释。

According to the requirement of power supply company, the authors propose a concept of weekly market by which the impact of price elasticity matrix of demand side on power purchase decision-making under time-of-use price is led into the optimization of power supply company's power purchase from weekly market, and a multi-objective stochastic optimization model for power purchase from weekly market in which the price elasticity matrix of demand side and risk are considered.

根据供电公司购售电业务的工作需要提出了周市场的概念，首次将分时电价下需求侧电量电价弹性矩阵对购电决策的影响引入供电公司周市场购电优化中，并建立了计及需求侧E矩阵与风险的周市场购电多目标随机优化模型。

And the inverse result of kinematics for the shield hinge equipment is obtained and one-degree inverse coefficient matrix of the impact, two-degree inverse coefficient matrix of the impact and the expression of velocity, acceleration for every component are calculated, all of these lay the foundation for the following kinetics of the shield hinge equipment.

研究盾构铰接装置的能控性问题，讨论铰接液压缸的驱动力对切口环上末端力的控制能力，通过盾构前体切口环的末端力能控性，理论证明盾构铰接装置在土层中工作时切口环的可行运动与不可行运动，并得到可行运动的运动特性曲线。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。