对称地

Exive least-squares solutions, antire?exive least-squares solutions, bisymmetric least-squaressolutions, symmetric and antipersymmetric least-squares solutions, symmetric or-thogonal symmetric least-squares solutions, symmetric orthogonal antisymmetricleast-squares solutions and their optimal approximation to the linear matrix equa-tion AX = B, and solve them successfully. 2. For Problem II, we can convert it to another problem of finding the least-squares solutions with the least norm of a new consistent matrix equation. Onthe base of the solutions of Problem I we can apply the iterative method to get

本文所构造的迭代法的优点在于先利用法方程变换将求矩阵方程的最小二乘解转化为求一个相容矩阵方程的解的问题，再利用迭代法对于任意给定的初始矩阵进行迭代，均可在有限步内迭代出所求问题的一个解；可将问题II转化为求新方程的极小范数解的问题，同样用迭代法求解，从而系统且全面地解决了问题I、II在约束矩阵类如中心对称、中心反对称、自反矩阵、反自反矩阵、双对称、对称次反对称、对称正交对称、对称正交反对称矩阵中的最小二乘解及其最佳逼近问题。

The solution group such as symmetric, skew-symmetric, centrosymmetric, centroskew symmetric, reflexive, antireflexive, bisymmetric or symmetric and antipersymmetric are successfully found.

构造了一种迭代法系统地研究了问题Ⅴ的一般解组、对称解组、中心对称解组、自反矩阵解组、双对称解组、对称次反对称解组及其最佳逼近等问题，并成功地解决了这些问题。

With its huge, uncouth, gnarled arms and fingers sprawling unsymmetrically, it stood an aged, angry, and scornful monster among the smiling birches.

它那弯曲多节的笨拙的巨臂和手指不对称地伸开，它这棵老气横秋的、鄙夷一切的畸形的橡树耸立在笑容可掬的桦树之间。

The starter also be designed 6-3 binding post according to power. after finishing the installation, pls connect the line to corresponding location of binding post.

起动器装配完成后，将转子的出线接在起动器接线柱对应位置（对于有六根出线的电动机，应将同一相的两根导线，对称地接在起动器的两个接线柱上）即可，具体接线如下图所示。

In the end, the piano performs a stormy gallop of triads, the hands flying apart more or less symmetrically, while the strings throw in a frantic accompaniment of regular staccato eighths.

在最后，钢琴弹奏出风暴般的疾速的三连音，双手或多或少对称地反向弹奏，同时弦乐用常规的八分音符断奏拉出狂乱的伴奏。

Study suggests the strata of this block are of the following feature: various sequence interface types, first-class fault and tectonic movement control strata framework styles; formation and evolution of Maodun sub-high makes single-lined fault dustpan-type depression complicated to produce unsymmetrical grabens and igneous rock, which influences detrital rock infilling pattern in the depression.

研究认为，本区地层格架有以下特点：多种层序界面类型、地层格架的样式受凹陷内一级断层和构造运动的控制、毛敦次凸的形成及演化将单断箕状凹陷复杂化，形成不对称地堑、火成岩的发育影响了箕状凹陷的碎屑岩充填模式。

Smooth curved arch of the main line, symmetry and light Fuzhao four small arch, as if the four giant Yuhuan, decorated in the fall of the deck.

弧形平坦的主拱线上，对称地轻伏着四个小拱，仿佛四个巨型玉环，装饰在桥身两肩。

All metaphases showed three distinct green signals, which have the same size and intensity, corresponding to a normal chromosome 8 and two isochromosomes 8q, and five red signals, of which one was located on a normal chromosome 8 and the another two quite symmetrically on the both arms of each isochromosome 8q, respectively.

结果发现：所有中期分裂相均显示3个绿色荧光杂交信号和5个红色荧光杂交信号；2个绿色荧光杂交信号分别位于2条等臂8q染色体着丝粒处，信号大小和强度均与位于正常8号染色体着丝粒处的1个绿色荧光杂交信号相当；1个红色荧光杂交信号位于正常8号染色体长臂上，另外2个红色荧光杂交信号非常对称地位于每一条等臂8q染色体的两条长臂上。

For problem II, many references have studied it and obtained its common solutions, symmetric solutions, skew-symmetric solutions and its optimal approximation constrained solution, but the representation of its solutions are complicated.

本文首次采用迭代法系统的研究了它求一般解、对称解、反求解约束矩阵方程及其最佳逼近的迭代法的研究对称解、中心对称解、中心反对称解、自反矩阵解、反自反矩阵解、双对称解、对称次反对称解及其最佳逼近问题，并首次成功地解决了它求中心对称解、中心反对称解、自反矩阵解、反自反矩阵解、双对称解与对称次反对称解及其最佳逼近的问题，拓广和改进了已有的研究成果。

A: There are no planetary alignments in the next few decades, Earth will not cross the galactic plane in 2012, and even if these alignments were to occur, their effects on the Earth would be negligible.

答：在今后的几十年当中，不会出现行星排成一条线的情况。2012年，地球也不会跨过银道面（译者注：银道面就是银河系的主平面。银河系成员如恒星、尘埃云及气体等，绝大部分都对称地分布在这个平面的两侧。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。