Conclusions Compared with traditional auscultation method, gradual withdrawal method can effectively and safely improve the rate of correct ideal anatomic placement of L-DLT.
结论 循序渐退法用于左侧双腔支气管插管，能够显著提高正确到位率。
The current detection method of motorcycle engine abnormal sound is artificial auscultation, which is very subjective and easy to make mistakes.
现行的摩托车发动机异响检测方法为人工听诊，主观性很强，容易出现错判。
Methods From 1963 to 1999, Author use method of auscultation and were clinical observed, 8 cases of cardiopulmonary murmur and refer to the literary of historical data.
方法：笔者1963年至1999年潜心研究心脏听诊，对8例病理性心肺杂音细心观察，结合文献。
Methods From 1963 to 1999, Author use method of auscultation and were clinical observed, 8 cases of cardiopulmonary murmur and refer to the literary of historical data.
方法：笔者1963年至1999年潜心研究心脏听诊，对8例病理性心肺杂音细心观察，结合文献。
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