the finite truncated cone-cylinder 有限长金属圆锥柱
On the basis of the experimental element pattern and GTD, an efficient numerical method for analyzing 3-D radiation field of antennas on the truncated cone-cylinder is presented.
根据实测的单元天线方向图，利用几何绕射理论，给出了金属截锥柱侧天线三维辐射场的一种有效的数值分析方法。
As indicated in the section on simple machines, a screw ACTS with a wedging action and consists of a circular cylinder (or truncated cone) with a helical groove in it.
如在简单的机器上的区段所指出的，一个螺丝钉以一个楔住行动行事而且有圆形圆筒(或者切断了圆锥体)与一螺旋状的在它里面的凹槽。
These formulas are also applicable to the finite truncated cone and cylinder.
这些公式同样适用于有限金属圆柱或圆锥。
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