global structure短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 总体结构 Bipolar chest stereoelectrocardiography, which has a global structure with13 leads based on orthogonal system, is the simplest frame structure of all round space next to orthogonal system. 胸双极立体心电图采用正交系基础上的13导联球体构型导联系统，是仅次于正交系的最简单的全方位空间框架结构，操作简便。 cnki