In order to enrich the content of the anatomy and histology about andrias davidianus , obtain new data about systematic position and blood circulation physiology and also provide reference for comparative anatomy and vertebrate evolution reseach , we studied the anatomy and histology about andrias davidianus by means of normal inject method , normal paraffin section method , microcopy system and digital camera 本研究主要采用常规血管注射法，常规石蜡切片法，以及光学显微照相系统和荧光显微数码照相系统对中国大鲵( andriasdavidianus )的循环系统进行了比较详细的解剖学观察研究，并对其心脏及血管进行了组织学研究。目的在于丰富中国大鲵解剖学和组织学的资料，为中国大鲵分类地位的探讨和血液循环生理研究提供解剖学依据，同时也为比较解剖学和脊椎动物的进化提供解剖学依据。
After the orderly reduction methods of massive scattered data being studied , this paper proposes a partial tangent plane slicing method and a virtual second - scan line method after giving a new k - nearest algorithm to re - organize the massive data . the new proposed methods of data reduction and grey theory based unusual noisy data process can be used to generate the scan line type data and it can be directly used to reconstruct curves and surfaces . the research lays a good foundation for reconstructing the cad model in a point - line - surface manner 4 .深入研究了海量散乱数据的有序简化技术,在提出建立海量数据点邻接关系k -邻近新的算法基础上,提出了局部切平面切片法和虚拟二次扫描线法,实现了海量数据的有序重组,通过基于灰理论的数据简化和异常点处理新方法,生成可用于直接重构曲线曲面的扫描线类型数据,为以点?线?面方式重构cad模型打下了良好的基础。
On the basis of this analysis the radiation and diffraction forces of the ship are calculated using these three methods and compared . at the same time vertical ship motions in regular wave are solved by these three methods . the results are compared to test each method ' s availability and suitability , thus the theoretical basis of optimize design of sea - keeping performance is provided 分别介绍了二维切片法、高速细长体理论和三维理论的基本原理，分析了三种不同方法各自的适用性，在此基础上分别计算了船舶的辐射力和绕射力，比较了这三种方法的计算结果，为不同营运目的的船舶耐波性计算提供陕速有效而实用的计算方法；同时应用三种方法计算了船舶在规则波中的垂向稳态运动响应，比较三种方法的计算结果，测试各种方法的有效性和适用性，为船舶耐波性的优化设计提供原始的理论基础； 2
