If you test by the triangle s angles , possible types are right , acute , obtuse , or equiangular 如果您用三角形的角度进行测试，那么可能的类型是直角、锐角、钝角或等角三角形。
2.
Since complicated differential and integral operations were involved in the kernel of the integral equation , we simplified the equation and got the nakano equation . as instances , the planar archimedean spiral antenna , the planar equiangular spiral antenna , the monofilar helical antenna , the conical helical antenna with fixed ascending angle and the conical equiangular - spiral antenna were analyzed through the moment method . all of the results matched fairly well with the references and experiment results 这种方法的积分方程的积分核里含有复杂的微积分运算，为了简化计算，本文在推广的海伦积分方程的基础上，对方程进行了简化，推导了nakano方程，并以平面阿基米德螺旋天线，平面等角螺旋天线，轴向模圆柱螺旋天线，具有固定升角的圆锥螺旋天线和圆锥等角螺旋天线为例，用矩量法求解了天线上的电流分布，研究了螺旋天线辐射的宽频带特性，所得的结果均与参考文献吻合很好。
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