根据听诊器的
According to the stethoscope
以上为机器翻译结果，长、整句建议使用 人工翻译 。
由于心音的频率较低而且非常微弱，医务人员通过听诊器根据自己的知识和经验对心音做出主观分析判断并不一定可靠。
Since heart sounds are generally of low frequency component and very faint, this method, depending on doctor's knowledge and experience, is subjective and sometimes is unreliable and ineffective.
youdao
应用推荐
模块上移
模块下移
不移动