A great number of experiments were carried out on measuring the bacterial removal rate of medium-efficiency filter material in air filters.
通过大量试验，测定了空气过滤器中效滤材的滤菌效率。
Medium efficiency filter installed in the automobile assembling plants and auto paint spray booths as the ceiling filters.
安装在汽车装配车间或汽车喷漆烤漆车间，作为顶棚滤棉。
Medium efficiency filter installed in the automobile assembling plants and auto paint spray booths as the ceiling filters.
安装在汽车装配车间或汽车喷漆烤漆车间，作为顶棚滤棉。
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