Evaluation and Development of the Leakage Testing System for Exhalation Valve
碩士 === 國立臺灣大學 === 職業醫學與工業衛生研究所 === 105 === An ideal tight-fitting full mask with exhalation valve has features of low impedance during exhalation and comfort when worn for a long period of time. The valve normally fits tightly to the base by vacuum created during inhalation; however, leakage could o...
Main Authors: | , |
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Other Authors: | |
Format: | Others |
Language: | zh-TW |
Published: |
2017
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Online Access: | http://ndltd.ncl.edu.tw/handle/97jucd |