心脏电位强度与探查电极方向关系探讨——兼谈《诊断学》该部分观点不当之处及修改建议
Relationship between cardio-action potential strength anddirection of probe electrode—querying some statementsin Diagnosis

《诊断学》心电图部分关于心脏电位强度与探查电极方向关系的示意图已经沿用十余年，但多数教师并不理解其构图原理，因此有必要详细阐述其构图原理以供教师参考。同时对其中的错误之处予以纠正，提出修改意见。
A schematic diagram in Diagnosis (a Chinese textbook for medical colleges), which explains therelationship between cardio-action potential strength and direction of exploring electrode, has been used for more than tenyears. Most teachers do not understand the principles of its composition. It is necessary to detail its composition principlesfor teachers’ reference. Meanwhile, we correct some errors in it and propose amendments