使用中应检查电动机、轴承、电刷与集电环、螺栓、通风、滤尘器等情况。

The motor bearings brushes electric rings bolts, ventilation and filter dust unit are checked before operating.

过滤膜介质用于精滤及超精滤。

Filtration membrane media used for precision filtration and ultra precision filter.

通风网络图是矿井通风管理的一种重要图件。

Ventilation network graph is one kind of important graphic document of the mine ventilation management.

风斗的取风性能直接影响通风系统的通风冷却效果。

The pick-up capability of wedges directly influences the cooling situation of the gap-pickup diagonal flow system.

粒径较粗且均匀的河沙滤料的使用，避免了滤料的大量流失和滤料结块。

Coarse and uniform sand, as filtering material, could prevent filtering material loss and agglomeration.