There must be a high efficiency air filter provided at the air outlet point.
在空气出口点必须提供一台高效空气过滤器。
A great progress for high efficiency air filter media was obtained over the last years, and its' application became more extensive.
近年来，高效空气过滤材料取得了很大进展，应用也日益广泛。
It is a kind of fan drive device equipped with high-efficiency air filter. It is used to collect dust particle, hold dust particle and control the pressure in working area.
是一种装有高效空气过滤器的风机驱动设备，用来收集尘粒、容纳尘粒和控制作业区压力。
It is a kind of fan drive device equipped with high-efficiency air filter. It is used to collect dust particle, hold dust particle and control the pressure in working area.
是一种装有高效空气过滤器的风机驱动设备，用来收集尘粒、容纳尘粒和控制作业区压力。
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