目的介绍一种简单实用而较精确的测量狭窄气管截面积的方法。
ABSTRACT Objective to introduce a simple and exact method which can be used to measure cross-sectional areas in large airways.
利用本实用新型吸气消音器，可通过调整和优化吸气管路截面积及其旁 通口的面积，以达到更佳的吸气效率和降噪效果。
The utility model can regulate and optimize the sectional areas of the suction pipes and the bypass pipe, thereby ensuring good suction efficiency and noise reduction effect.
利用本实用新型吸气消音器，可通过调整和优化吸气管路截面积及其旁 通口的面积，以达到更佳的吸气效率和降噪效果。
The utility model can regulate and optimize the sectional areas of the suction pipes and the bypass pipe, thereby ensuring good suction efficiency and noise reduction effect.
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