心、肺听诊是医科院校诊断学及内科学教学的重要内容。以往由于学生多、病人少、病种不全,理论讲授时学生难以理解及课后学生不能反复听诊复习等,影响教学质量。DTL—Ⅱ型多道电子听录仪(见图1)用于听诊教学,可同时供多名学生在病房见习听诊;心、肺音记录后,可供教师讲授理论课时,边讲、边放;亦可供学生课后反复听诊练 Cardiac and pulmonary auscultation is an important part of medical school diagnosis and internal medicine teaching. In the past due to more students, fewer patients, the disease is not complete, the theory is difficult to understand when teaching and after-school students can not repeat auscultation review, affecting teaching quality. DTL-Ⅱ multi-channel electronic hearing recorder (see Figure 1) for teaching auscultation, at the same time for a number of students in the ward auscultation; heart, lung sound recording, for teachers to teach theory class, while talking, ; Also for students after listening repeatedly practice