axilsCOCA¹⁹⁵⁶⁹²BNC¹⁴⁴⁶⁶⁴⁺³ 基本例句 n.叶腋医腋；叶腋植原型axil的三单 Y-fractal element has three symmetrical axils, so this kind of element has better circularly polarized character than cross dipole element that has two symmetrical axils. 分形单元具有三个对称轴，比以前文献中提到的十字交叉形单元具有更好的圆极化特性。 cnki