查询词典 fold singularity

Analyses of the relationship among strength factor, structure and reservoir permeability show that the high permeability zones of the No.3 coal seam in the Shanxi Formation of CBM development blocks in the southern Qinshui Basin commonly occur in the fold axial region with a low strength factor and relatively strong deformation of rock mass, especially the superimposition region of multistage fold axes, where strong deformation resulting in welldeveloped fractures in coal seams.

通过分析强度因子、构造和储层渗透性的关系发现，沁南煤层气开发区块山西组3号煤的高渗区往往位于岩体强度因子较低的、岩体变形较强烈的褶皱轴部，特别是多期褶皱轴部叠加部位，强烈的变形使得这些部位的煤体裂隙较为发育。

Computer design has been widely used in modem design, but it presents the tendency of singularity, formality and patterning in designing. The purpose of this article is to find the way to overcome these malpractices by analyzing the package designing style of Japan, Hong Kong and Taiwan. The way to extract nutrition and to seek creation afflatus from folk-custom arts was discussed.

现代设计领域电脑设计已被广泛应用，但带来的是设计的模式化、程序化和单一化倾向，针对这种现象，以日本、香港、台湾等国家和地区的包装设计风格为例，就如何克服这些弊端，如何从民俗文化、民间艺术中吸取营养，寻找创作灵感等问题进行了探讨。

Therefore, the property, of Pascal line is important for both algebraic curve and singularity of spline space The aim of this paper is to find common properties among conic curves which have the same Pascal line and compute the track of Pascal lines.

所以，对于Pascal线性质的讨论，对于代数曲线以及多元样条空间的结构方面的研究也起着重要作用。

Furthermore, people found that the relationship between intrinsic properties of planar algebraic curves and the singularity ofbivariate spline spaces is m-ore and more important.

尤其是经过近年来的研究，人们发现多元样条空间的奇异性问题与代数曲线的内在性质有着越来越重要的关系。

The practically oriented treatment of dynamic structural buckling is undoubtely be hampered by two problems, how to adopte a existed criterion or advance a new criterion of dynamic stability in general sense, and how to develope a simple and appealing algebraic representation in terms of singularity of the tangental stiffness matrix .

实际解决动力稳定问题的进程无疑受碍于怎样选用已有的或发展新的一般意义上的动力稳定性判定准则，以及怎样发展简洁的富有吸引力的切线刚度矩阵奇异性的代数描述方法。

Antiplane problem ; interface end ; singularity index ; stress intensity factor.

反平面问题；界面端；奇异指数；应力强度因子

PITH-YAW-ROLL joint mechanism without joint singularity is studied in this dissertation, and apery arm-7 d o.

设计了无关解奇异的PITH-YAW-ROLL全方位关节机构，并在此基础上设计了七自由度拟人手臂机器人。

In this dissertation singularity avoidance Pith-Yaw-Roll joint apery arm-7 d o. f robot is designed and its inverse kinematics algorithm is studied It is an important problem in the field of redundant robot that inverse kinematics algorithm, and it is studied in this dissertation.

自1996年以来，我所在课题组承担了国家863网点基金项目：拟人手臂机器人系统的研制工作，本文论述了具有全方位无关节奇异的Pith-Yaw-Roll关节机构的七自由度拟人手臂机器人的设计及其逆运动学算法研究。

Convert relationship of prototype robot joint angle and equivalent model joint angle is presented based on the method of kinematics inverse solution. The Jacobian algorithm of redundant robot for achieving effective joint excursion is studied, which is fit for digital calculating. The grads projection algorithm of redundant robot multi optimizing capability function's proportion factor is deduced. The issues of apery arm robot singularity and joint self-movement are researched. The simulation experiment result of apery arm joint self-movement and line movement is presented.

因为七自由度拟人手臂机器人的建模比较困难，采用了在等效模型下求解其运动学逆解的方法，给出了原机器人机构关节角与等效模型关节角之间的转换关系；提出了一种适于数值计算的有效的求解有关节偏置的冗余度机器人Jacobian的算法，并在此基础上推导了冗余度机器人多优化性能指标函数的均衡比例因子梯度投影算法；研究了拟人手臂机器人的奇异问题和关节自运动问题；给出了拟人手臂进行关节自运动和进行直线轨迹跟踪的仿真实验结果。

Further more,we compute the asymptotic expansion of sums involving generalized harmonic number by singularity analysis method.

进一步地，利用奇异性分析方法，求出涉及广义调和数的一些和式的渐近展开。

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

All this to say that I'm glad filmmaking hasn't become completely ironic. I can enjoy an ironic film as much as the next person, but they usually involve a message of some sort. One that's delivered in a smirkingly clever way that requires little in the way of talent.

所有这些都是说，我很高兴电影制作没有变成完全讽刺艺术，我可以和下一个人一样享受讽刺电影的乐趣，虽然他们经常会被划归到一定级别，技术方面不需要很高的才能。