单交

On the basis of OCM, segmentation based on curvature radium is presented in the paper, in which curvature radium is calculated using parametric-surface fitting, and detecting edge points is realized from orthogonal direction, which ensure the integrality of edge points. Since the data is organized by cross-line in OCM, a new arithmetic, Double-direction Angle Difference arithmetic, is brought forward, which can pick up edge points more quickly.

物体的表面一般由多个曲面相交组成，要建立完整的几何模型，需要对测量数据进行区域分割——区分不同曲面的数据，现有的区域分割大多是对单视图的图像式测量数据进行的，但完整的CAD模型需要联合多个视图产生，本文在上面提出的三维正交模型的基础上，提出了三种区域分割方法：第一种方法是基于曲率半径的数据分区方法，通过二次参数曲面拟合计算局部曲率半径，从正交的多个方向进行检测，保证了边点提取的完整性。

First, based on all that have been mentioned above, the geometric constant D, which was introduced to characterize the quantitative difference between Birkhoff orthogonality and isosceles orthogonality, is studied further. Moreover, attainability as well as continuity and monotony of D in two-dimensional sequence spaces are presented.

基于上述原因，本文首先在已有结论的基础上，对用以刻画等腰正交和Birkhoff正交性之间量化差异的几何常数D进行了进一步的研究，解决了D的可达性，二维序列空间中D的连续性与单调性等问题。

According to the theory of acousto-optic interaction,the formulas of diffraction loss of two AO Q-switches,which acousto-field are perpendicular or parallel one another,in normal Bragg diffraction are derived.

分析了单声光器件、超声场相互平行和相互正交的两声光Q开关器件衍射损耗，给出正常布喇格衍射的超声场相互平行和相互正交的双声光Q开关器件衍射效率的表达式。

Preparation methods and physicochemical properties of hexane diacid -crosslinked starch were investigated with orthogonal experiment.

通过单因素试验和正交试验，研究己二酸交联淀粉的制备方法，测定己二酸交联淀粉的的多个理化性质。

Acidic ethanol water solution was used as solvent to extract tannin and phytic acid from the perilla seed meal.

采用酸性乙醇－水体系对紫苏粕中的单宁和植酸进行提取，以单宁提取率为考察指标，通过单因素和正交实验，确定了最佳提取工艺参数。

The best four single-factor components were determined according to the effects of different carbon and nitrogen sources, inorganic salts, water-material ratio on xylanase-producing observed in the single-factor test; and on the base of this test, the best combination of tested factors were confirmed through the orthogonal experiment and its zymology properties was also studied.

通过单因素试验观察了不同碳源、氮源、无机盐、水料比4种因素对产木聚糖酶的影响，确定了4种最佳的单因素成分；在单因素的基础上，再通过正交试验确定了所试因素的最佳组合，并对其粗酶的酶学性质进行了研究。

It would help me greatly if you would accept D/P or D/A i tead.

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Second, based on the spherical vector wave function in uniaxial anisotropic medium, and the first, second, third and fourth spherical Bessel functions satisfy the same differential equation and recursive formula. The scattering fields in terms of spherical vector wave function from a uniaxial anisotropic spherical shell and an anisotropic uniaxial-coated conducting sphere by a plane wave are derived. The electromagnetic fields in uniaxial anisotropic medium and free space can be expressed in terms of spherical vector wave functions in uniaxial anisotropic media and isotropic medium.

二、在建立均匀各向异性单轴介质球矢量波函数理论的基础上，利用二阶线性偏微分方程的性质和第一、第二、第三和第四类球Bessel函数满足相同的微分方程和递推关系，我们分别研究了单轴介质球壳和单轴介质涂覆导体球对平面波的电磁散射特性，首先给出了各个区域的电磁场用球矢量波函数来表示的解析表达式，进而利用电磁场在边界上满足电磁场切向连续的边界条件和球谐函数的正交性，得出了各向异性单轴介质球结构中电磁场用球矢量波函数表示的系数所满足的矩阵方程。

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The results were as follows: Firstly, the S-locus of Katy was heterozygous, and self-compatibility was dominant to self-incompatibility. Secondly, a very extensive segregation in self-pollinated fruiting rate, fertile flower rate and average fruit weight was observed in the F1 populations, and averages of these traits were lower than that of mid-parent means. Therefore, these traits were confirmed to be quantitative.

结果表明，（1）凯特杏的S基因位点为杂合型，自交亲和对自交不亲和为显性遗传；（2）3个杂交组合的自交坐果率、有效花比率及平均单果重等性状在F1中广泛分离，杂种群体的平均值低于亲中值，表现明显的衰退现象，表明这3个性状均为数量性状。

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。