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用于进气过滤和通风空调配套的YJS.型粗、中效空气过滤机组,是国内首次将各具特色的自动卷绕式空气过滤器和中效过滤器合成一体的新颖产品。占地面积小,过滤性能好,在进气净化设备中具有国内先进水平。该机组的研究设计从一九八一年秋开始。当时,由冶金部建筑研究总院和北京有色冶金设计总院等单位协作研制成功的自动
The YJS. Coarse and Medium Efficiency Air Filtration Unit for Intake Air Filtration and Ventilation and Air Conditioning is the first time in China that it combines the unique automatic air-wound air filter and medium-efficiency filter into one novel product. Small footprint, good filtering performance, and advanced domestic level in the intake purification equipment. The research and design of this unit began in the autumn of 1981. At that time, the successful cooperation between the Ministry of Metallurgical Construction Research Institute and Beijing Nonferrous Metallurgy Design Institute and other units successfully developed.