| 1. | To layout objects in a finite three dimensional space efficiently and automatically is an important issue in many application fields 如何快速且美观的实现多个实体在一个有限的三维空间中的自动摆放在很多应用领域中是一个重要的课题。 |
| 2. | In this paper , to improve the course teaching of mechanism theorem , a visual analysis and simulation program of planar linkage in three dimensional space has built up 机构分析与仿真是机械原理教学的重要内容,其中连杆机构的运动分析是难点与重点。 |
| 3. | Secondly , we study combat decision algorithm based on data link in three dimensional space and consider a new decision model to do the more effective situation evaluation 其次研究了数据链指挥下基于三维空间的空战决策算法,并重新考虑了决策模型以进行更为有效的态势评估。 |
| 4. | The design is based on a common natural pattern , the most effective sub - division of three dimensional space ? the fundamental arrangement of organic cells and the natural formation of soap bubbles 这个设计基于一种普遍的自然样式以及最为有效的三维空间的划分?组织细胞的基本排列以及肥皂泡的自然形态。 |
| 5. | Construct a three dimensional space finite element analysis model for the steel mix joint part of road bridge surface , study the distribution complexion of strain field in the steel combine part , and judge its endurance and safety capabilities 对公路桥面板钢混结合部位,建立三维空间有限元分析模型,研究钢混结合部位的应力场的分布情况,评判该部位的受力性能及安全性能。 |
| 6. | Construct a three dimensional space finite element analysis model for the part which is most unfavorable for the anchorage zone of cable support tower , caculate its complexion of internal force distribution field , and study some detail costruction which impact the distribution of internal field 对最不利索塔锚固区,建立三维空间有限元分析模型,计算索塔锚固区的应力场分布情况,并研究一些细部构造对应力场分布的影响。 |
| 7. | By means of measuring the difference in physical characteristic of rock body we could predict the geological condition that the gas power composes in , by means of measuring the position in three dimensional space we could determines the security thickness of the rock body with which the mining is protected , and so on 通过测量岩体物性差异预测瓦斯动力赋存的地质条件,通过测定物性差异体的三维空间位置可确定采矿作业的安全岩体隔离厚度,等等。 |
| 8. | An discriminantt rule to transfer interference analysis from three dimensional space to two dimensional space is presented with consideration of shape and volume of two booms in the case . and practical analysis is applied on simplified model of two booms by the discriminant rule . the method presented discriminate simply , calculate quickly and has importantly applied value 在考虑双臂形状与尺寸的情况下,提出了一种将干涉分析由三维空间转化为二维平面的判别准则,并将干涉判别准则在双臂的简化模型上进行了实际的分析,该方法判别简单、计算速度快,具有重要的实用价值。 |
| 9. | At last , three - dimensional mathematical model of gas - particle two phase turbulence was established , and it was adopted to study the gas - particle two phase rectangular jet as well . the distribution of the time - averaged velocity and turbulence intensity was studied , and some of the simulation results were compared with the experimental results ; the coherent structure of flow field was described in the three direction , the evolution and motion of the eddies was discussed too ; the dispersion of fine particles in the three dimensional space was also investigated 全面地分析了矩形射流气相时均流场的速度、湍流强度的空间分布规律,并就部分数值模拟结果与实验结果进行了对比研究;描述分析了气相流场湍流拟序结构,对流向、横向和展向三个方向旋涡的空间结构特点进行分析研究,并分析了流向涡随时间变化的发展、运动规律。 |
| 10. | To overcome the knowledge representation limitations of the traditional signed digraph model based expert systems for hazard and operability analysis , a novel layered digraph model for automating process hazard and operability analysis is proposed based on the graphical theory by decoupling the two dimensional signed digraph models in the three dimensional space 摘要为克服传统的基于有向图模型的危险和可操作性分析专家系统在知识表达方面的局限性,通过将二维的有向图模型在三维空间的解耦,采用图论的方法,提出了一个可以用于危险和可操作性分析自动化的有向架模型。 |