In this paper, radar cross section of arrays with rectangular, cross-shaped and circular element is computed and the results are compared with the that of method of moment to validate this method.
文中计算了矩形、十字形及圆形单元微带阵列的雷达截面，并与常规矩量法和参考文献的计算结果进行了比对，验证了该方法的有效性。
Six kinds of rotary blades with same tillage depth and same mounting Angle are designed which have the circular element scoop surfaces. The parameters of the scoop surface are discussed and optimized.
设计出六种具有相同侧切刃的等耕深、等安装角圆弧母线正切面旋耕刀，并对正切刃、正切面诸参数进行了优化和选择。
Two circular tables stood outside, each with a gas heating element at its center.
两张圆桌子在外面，每个中间都有加热装置。
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