构造的

Stratabound deposits in Archeozoio era: of the early Archeozoic, there are Qianxi iron ore deposit in volcanic and sedime...

层控矿床的成矿时代，由于其成矿的复杂性和成矿时间的不确定性，我们只能以地质一构造的巨旋回为准，分为太古宙、元古宙和显生宙的古生代和中-新生代四期。

In the paper, under the condition of that a singular system is admissible, stable controls for a bilinear singular system are designed by using two kinds of Lyapunov function respectively, and the two above control display different forms. At the same time, the control restrained by upper and lower bound is examined.

利用所构造的两种广义Lyapunov函数，在广义系统容许的条件下，分别设计了双线性广义系统的稳定控制，且上面存在的2种控制具有不同的表现形式。

The embedding problem is one of the fundamental and important problems in combinatorial design theory.

设计的嵌入问题是组合设计理论中的一个基本而重要的问题，它不仅是设计递归构造的有力工具，而且本身也是组合设计理论中的重要研究对象。

The viscosity of the medium will cause dissipation of seismic energy, thus decreasing the amplitude and modifying the frequency content of the propagating wavelet. In order to obtain accurate information and imaging with high distinguishability from seismic data, the propagating rule of wave in viscoelastic medium should be studied.

地震波在大地介质的传播过程中，不仅波的振幅会衰减，而且有频散现象，因此要从地震数据中得到复杂构造的准确信息和高分辨率的图像，就必须研究粘弹性介质中波的传播规律。

On the basis of the frame of dodecahedron, we apply the method of "spherical stretching" to the frame, we can obtain a novel polyhedron with I_h symmetry, which contains 72 pentagons.

我们在十二面体框架的基础上，利用"球面拉伸"的方法，得到新的具有二十面体对称性，72个五边形构造的的多面体结构。

In this thesis, we define the notions of μ-semirings, A-semirings,*-μ-semirings and *-λ-semirings which extend the notions of inductive *-semirings. we also study the basic properties of these semirings and discuss the interrelation between them. Also, we discuss whether these semirings are closed for the construction of formal power series via a fixed point-theoretical viewpoint.

本文给出了归纳术*-半环及弱归纳*-半环概念的推广，即μ-半环、λ-半环、*-μ-半环以及*-λ-半环的定义；研究了这些半环的一些基本性质以及它们之间的相互关系；同时结合形式幂级数及不动点理论，讨论了这些半环关于形式幂级数构造的封闭性问题。

In mechanics kinematics, Jacobin matrix may be calculated and simplified by vector constructing; Inverse solution and its restricting condition be given; Forward solution be solved by new-raphson method. The method need shorter time than optimization and has a lot of advantages in applying program; some relationship of velocity, acceleration, force and error of mapping from input to output have been given. Analyzing of theory base these researches.

在机构运动学研究方面，通过矢量构造的方式计算出了速度雅克比矩阵，简化了计算量；给出了机构位置逆解的计算过程及约束条件；利用Newton—Raphson法计算出了机构位置的正解，该算法比优化法计算时间短，而且利于实际编程；给出了机构输入、输出端速度、力、误差的映射关系，这些研究是机构理论分析的基础。

Using these elements, the nonlinear dynamic response of laminated structure under the visco elastic damping were numerical studied. Many beneficial conclusions were obtained.

用本文构造的几何非线性单元，对粘弹性阻尼作用下的层合结构动响应及粘弹性阻尼衰减效果进行了计算和分析，得到了一些有益的结论，可作为材料和结构设计的指导。

For this study, however, we will present the results of a PRBM analysis applied to the leg structure alone, a simple slider crank where the leg is formed by extending the crank.

但是就本研究而言，我们将提出单独应用于立柱构造的PRBM分析结果，一种在这里由延伸曲柄形成的立柱的简单的滑块曲柄。

New ideas about the characteristics of the high-precision magnetic anomalies on orebearing rock and its wall rocks must be useful to explore indirectly the metallic ore deposits with high precision magnetic survey.

通过分析研究区高精度磁测异常特征及地质、地球物理、地球化学特征，解释了磁异常的地质原因，推断矿体的赋存位置和控矿构造的空间特点，指出了寻找铜铅锌多金属矿的靶区。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。