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Blends of 75/25 chloroprene rubber/natural rubberfilled with various loadings of precipitated silica were prepared,and their mechanical properties as well as the resistances to thermal aging and oil were studied.

研究了不同用量的沉淀法白炭黑填充质量比75/25的氯丁橡胶/天然橡胶共混物的物理机械性能、耐热老化性能和耐油性能，并用扫描电镜研究了共混物的结构。

This invention applies mild condition uses substituent group triphenylamine aldehyde or triphenylamine dialdehyde as raw material to react by heating with 2-(5,5-dimethyl-3-vinylcyclohexenyl-2-enylidene)propanedinitrile group to produce the intermolecular charge transfer chromogen with high decomposition temperature, non-coplanar structure, and triphenylamine group.

本发明采用温和的手段，将取代基三苯胺单醛或取代基三苯胺双醛为原料与2-(3，5，5-三甲基环己烯-2-烯亚基)丙二腈共热生成具有高的热分解温度、非共平面空间结构的含三苯胺基团的分子内电荷转移生色团。

In the first part of dissertation, the basic theory of conformal array is introduced. The three-dimension DBF of circular array and cylinder array are presented.

首先，介绍了共形阵的基本理论及相关技术，并对共形阵的常规阵列均匀圆阵和圆柱阵进行了详细的三维波束图仿真研究。

3D seismic migration algorithms of holding circular symmetry ;2. Assuming that the point spread function is circular symmetry and considering that the image is actually complex conjugate symmetry in frequency domain, authors establish a new cost function in frequency domain.

算法假设退化系统的点扩散函数具有圆对称性，并考虑图像的频域具有复共轭对称性，在频域里建立了新的优化判据；采用共轭梯度算法搜索判据，从而在有实际物理意义的区域中收敛于最优解；对光学成像系统常见的离焦、衍射模糊问题进行了仿真；用该算法实现了其退化图像的恢复，给出并分析了结果。

The cofinality of a set of ordinals or any other well ordered set is the cofinality of the order type of that set.

序数或任何其他良序集合的集合的共尾性是这个集合的序类型的共尾性。

For example, the cofinality of ω is ω, because the sequence ω·''m''( where ''m'' ranges over the natural numbers ) tends to ω; but, more generally, any countable limit ordinal has cofinality ω.

例如，ω的共尾性是ω，因为序列ω·''m''(这里的''m''取值于自然数之上)趋向于ω；但是，更加一般的说，任何可数极限序数都有共尾性ω。

Based on the similarity of common reflection point trace gathers in one coherent zone, CRS stack can focus more energy on the vicinity of the reflector, and therefore can obtain a high signal-to-noise ratio zero offset section by stacking events with the same phase.

共反射面叠加利用了邻近多个共反射点道集的相似性，提高了资料的覆盖次数，从而压制了随机噪声，增强反射波同相轴的连续性，大幅提高了地震资料的信噪比。

Article 52 Two or more insurance companies engaged in the coinsurance of a same subject matter of special risks such as large projects or satellites, or at least one of the insurance companies has obtained approval for coinsurance in the place where the subject matter is located, shall not be subject to the restrictions concerning the area for business.

第五十二条两家或两家以上保险公司参与大型工程、卫星等特殊风险对同一保险标的共保，或其中至少一家保险公司已取得保险标的所在地经营保险业务许可的共保，可以不受经营区域范围限制。

Since the Colinear command stays active, make the bottom edge of the rectangle colinear with the bottom inside edge of the face.

由於「共线」指令保持作用中的状态，因此会使矩形的底边与面的底部内侧边共线。

In this paper, cross ratios of the four collinear points and five coplanar points were analyzed first, then some affecting factors were concluded, and some constraints were proposed on constructing model-based object recognition system.

首先对共线4点和共面5点构成的交比不变量的稳定性进行了分析，得出了影响稳定性的因素，然后提出在构造目标识别系统的模型时应注意的约束条件，实验表明：在这些条件下构造模型的抗噪声能力大大提高。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。