Using the moment method, the antenna and surface currents of aircraft are calculated. Finally, the radiation pattern of a D-type-no-man aircraft is induced.
用矩量法计算了飞机天线及其机身表面的电流分布，推导了飞机天线的辐射方向图。
The trend of river bed deformation calculated by a plane 2-D numerical model of total sediment transport is in good agreement with the real conditions.
通过选择有关参数，处理工程边界以及进口边界条件，用二维河道全沙数学模型计算所得的河床变形趋势与实测情况基本一致。
In all, A 2-D femur model is calculated for bone remodeling of 3000 days, the results are creditable in good consistence with clinical obervations;
计算了二维股骨在外界静载荷工况下3000天的重建，结果与真实股骨截面密度分布非常相似；
This article presents a modifying gradient method, and the fastest 3-D turning trajectory from subsonic to supersonic is calculated.
对此提出一改进梯度方法，并计算了某型战斗机从亚音速三维转弯升高到超音速的最短时间飞行轨迹。
According to lifting hoist reel tube shell structure and work situation, a 3-d calculated model of tube shell has been established with finite element analysis method.
采用有限元分析方法，根据提升绞车卷筒筒壳的结构和工作情况建立了筒壳的三维计算模型。
In this paper, based on image stereovision, a method used for 3-d reconstruction of target image is introduced, and according to this method, target strength is calculated.
本文从图像立体视觉出发，提出了一种利用目标照片进行三维重建进而计算其目标回波强度的方法。
With a general program of the3 D RBJE, this paper calculated the upper bound of the square base limit load on the center of the top surface of the square pillar.
文中用通用的二维刚体元程序计算了正方形柱体顶面中心区域作用方形基础载荷情况的上限解。
At last, by a 3-d reconstruction, the space coordinates of insects can be calculated.
最后提出对二维图像进行三维重构，计算昆虫空间坐标。
At last, by a 3-d reconstruction, the space coordinates of insects can be calculated.
最后提出对二维图像进行三维重构，计算昆虫空间坐标。
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