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。
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。
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。
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