You can put a filter on a particular threshold counter.
您可以对特定的阈值计数器设置过滤器。
While the primary filter works, some filter cores can be counter rinsed, as a result, the service life of the filter core can be prolonged and the operation cost can be saved.
初滤器过滤杂质的同时，部分滤芯可反冲洗，延长初滤器滤芯的使用寿命，节约运行费用。
The counter- flushing may make the filter bed long- term effective use, reduce the service and the comprehensive cost.
反冲洗可保障滤层长期有效使用，减少维修，降低综合成本。
The two-filter method is chosen as the experimental method to detect radon concentrations by a FT-648 radon counter.
本文建立了氡浓度测量的双滤膜实验方法，使用FT- 648测氡仪实施氡测量。
The two-filter method is chosen as the experimental method to detect radon concentrations by a FT-648 radon counter.
本文建立了氡浓度测量的双滤膜实验方法，使用FT- 648测氡仪实施氡测量。
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