| 1. | Generally, one approximates a blackbody in the laboratory by a hollow insulated enclosure which contains a small hole in the wall .
一般地说，人们在实验室中用壁上带有一个小孔的空心绝缘壳来近似模拟一个黑体。 |
| 2. | A d converter , successive approximation
连续近似模拟数字转换器 |
| 3. | A one - dimensional model is used to simulate the river water quality , which is solved by finite difference method
利用一维水质模型来近似模拟河水的水质状态。 |
| 4. | Artificial neural network ( ann ) is a approximate simulation of biologic nerve system , which is a network model with a special algorithm got from biologic prototype after abstractly research
人工神经网络是对生物神经系统的近似模拟，是把生物原型通过理论研究抽象成为具有某种特定算法的网络模型。 |
| 5. | In the second part of the dissertation , we have used the ab initio cluster model approach to study the adsorption of co on the pt - ru alloys surfaces . the calculated equilibrium geometries and vibrational frequencies have been found to be rather in agreement with experimental study
本文还用原子簇模型近似模拟了co在pt - rt二元合金表面的吸附，计算了它在平衡状态时的结构和振动光谱，发现它们与实验值极其一致。 |
| 6. | In order to simulate ray trace reflection effect , the mirror reflection and curving reflection have been distinguished , giving an predigest method simulating approximate the ray trace effect by use of mirror geometry and the middle curving surface texture mapping
为了提高实时渲染图像的质量，模拟光线追踪反射效果，本文将反射分成镜面反射和曲面反射两种类型进行了讨论，利用镜面几何和中间曲面贴图映射方法给出了近似模拟光线追踪反射的简化技术。 |
| 7. | Second , this paper analyzes the time - frequency distribution of the clutter from airborne pulse doppler radar ( pdr ) . the side - lobe clutter , which is the main factor to influence the pdr , is analyzed and calculated . based on the simulation of typical geometry of the land , we analyze and discuss the side - lobe clutter and concluded that the dft of can be considered as the phase of the coho
并且根据各种典型地貌的近似模拟，从统计特性上和频率域上对脉冲多卜勒雷达的旁瓣杂波进行了分析讨沦，还得出脉冲多卜勒雷达的dft可以近似地看作相参积累，并在程序的编制中利用了这一个结论。 |
| 8. | Based on the analytic analysis of the linear synchronous motor ’ s layered model , the paper deducted the composing of air gap magnetic fields and the analytic expression of levitating and advancing force . these results provide theoretic guidance not only for the analysis and measurement of the vehicle ’ s air - gap magnetic fields but also for the eatablishment of the
采用各向异性介质近似模拟齿槽区域,并引入定子和转子等效电流层的概念,建立了直线同步电机的磁场分层模型,在此基础上得到了气隙磁场的组成以及悬浮力和推力的解析表达式,为气隙磁场的分析和测量以及列车运动情况下电磁力软测量模型的建立提供了理论指导。 |
| 9. | Based on the analysis of mechanism for joint region , the " frame - wall " and " aslope compression stub column " mechanical models and yielding patterns of core zone of the joints are set up . the shear load - carrying formulation for joint core zone is also given in terms of plastic ultimate analysis . and then , the comparisons between the formulas given in this paper and that of chinese design code ( draft ) and nonlinear fem as well are presented
对节点核心区的抗剪，通过受力机理的分析，建立了钢“框架剪力墙”加混凝土“斜压短受力体系及其屈服机制，根据塑性极限分析，给出了节点核心区抗剪承载力计算的迭加公式， 《规程》公式和非线性有限元近似模拟分析结果进行了比较。 |
| 10. | 4 . to improve the calculating accuracy , it was suggested to chang the ideal connection conditions between micro - crystalline phase and nano - crystalline phase and a midst zone should be built between them . and then the results calculated by the last step was viewed as the performance parameters of this zone , and the real connection conditions were closed
对代表单元体两相连接界面的假设，进行尝试性改进，即在增韧相与基体相之间增加一个界面过渡区域，同时将前步计算所得的代表单元形变性能作为界面过渡区域材料的性能，以近似模拟真实的界面连接情况，进而提高对整个代表单元体性能的计算精度。 |
