细菌过滤器;
For particularly noxious sites, these workers wear full respirators to filter out bacteria and odors.
对于特殊的、有毒的地点, 他们要穿全套的放毒装置,防治细菌,以及难闻的气味.
Objective : To evaluate the efficacy of the positive charge-modified microporous filter in removing bacteria from water.
目的: 研究荷正电微孔滤器对水中细菌的去除效果.
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