electronic stethoscope电子听诊器electronic industrial stethoscope电子工业听诊器He invented a new type of stethoscope.他发明了一种新型听诊器.The stethoscope is a medical instrument.听诊器是一种医疗器械.Through his stethoscope, Noah Townsend's clinic...
The stethoscope is a medical instrument.听诊器是一种医疗器械.He invented a new type of stethoscope.他发明了一种新型听诊器.Through his stethoscope, Noah Townsend's clinical notes revealed, he heard suppressed breath sounds and lung rales...