井下工业性试验表明，该过滤装置结构简单，可靠实用，可替代分散式多点一次性滤心过滤器。
Underground industrial test showed that the filtering device was reliable and practical with simple structure, and could replace dispersive multi-point one-off filter with filtering core.
井下工业性试验表明，该过滤装置结构简单，可靠实用，可替代分散式多点一次性滤心过滤器。
Underground industrial test showed that the filtering device was reliable and practical with simple structure, and could replace dispersive multi-point one-off filter with filtering core.
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