近似作图

In engineering drawings,horizontal oblique axonometric projection of shade and shadow on spheric surfaces can be drawn only in special light ray directions and by approximate methods,causing great trouble.

工程图学中，用传统的作图方法求圆球及阴影的水平斜轴测投影，只能在特殊光线方向下，用近似方法绘制，且作图非常麻烦。

The distribution of genotypic composition was normal.The population is ideal for gentic mapping and other genomic research

该RILs群体各家系的基因型组成近似正态分布，是一个适于遗传作图及其他基因组研究理想的RILs群体。

Groups the population according to the search width and integrated partition region principle, and determines task allocation on the basis of balanced task. Further regarding the center of the square grid as the point of the graph, transforms the original problem to be an approximate Hamilton question, then obtain one path like "one stroke" starting from the jumping-off point and rendezvousing for the midpoint of left side.

根据搜索宽度和整分搜索区域原则进行人数分组，再根据区域分配的均衡原则确定任务分配，最后把每个方格中心看作图中的点，将搜索问题转化为一个近似的哈密尔顿问题，设计出一条从起点处出发集结于一边中点的&一笔画&路径，而该路径的搜索效率达到95%，即得到的是误差很小的近似最优解。

The root-cause for the synchronous error of multiple axes of the vehicle panoramic sight platform was found after analysis with the geometric method. Since the synchronous error is caused by the windage angle produced in the working process of the optoelectronic platform, the method to correct the angular deviation at any distance is proposed. The experiment for solving the problem was implemented. The experiment indicates that the method is valid.

针对车载周视观瞄平台异轴同步性问题采用几何作图法进行分析，得到异轴同步问题产生的根源是不同光电平台转动过程中由于存在偏差角所致，对校准距离情况下的角偏差，距离小于校准距离情况下的视差和距离大于校准距离情况下的角偏差在3中不同区间的修正方法进行分析并进行等效近似，给出程序实现方法，最后用实验验证了此方法的正确性。

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。