The paper evaluates the reasonness of airysystem by making use of the theory of foggy mathematics and by using multiple indexes.
利用模糊数学理论，采用多个指标全面衡量通风系统的合理性。
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And when the workshops are light and clean and airy, when the tool storage system is well planned and when the right equipment is always handy then it′s easier to do the job well.