After experimenting with different materials, Laennec decided that wood cylinders conducted sound best. He spent the rest of his life interpreting heart and lung sounds, conducting autopsies when possible to confirm the diagnoses he'd made by sound.通过对不同材质进行实验后,莱纳克认为木质圆筒作为听诊器的效果最佳.他将余生致力于研究心肺听诊,并通过尸检来验证他此前通过听诊所下的诊断. _________________________.In the 1820s, many physicians felt that listening through the cylinder would be too time consuming, inconvenient, and well, even silly! But soon the value of Laennec's modest invention became clear. And today, the stethoscope is a nearly universal symbol of medicine and health care.19世纪20年代,许多医生认为通过圆筒听诊太费时又不方便,甚至很愚蠢!但不久之后,莱纳克这项颇为实用的发明的价值逐渐显现.现今,听诊器已成为医学保健普遍的象征.
发表于 2013-1-14 09:48
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发表于 2013-1-14 23:50
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