I smoke filter-tipped cigarettes in order not to waste pipe tobacco.
我抽的是带过滤嘴的烟， 这样不浪费烟丝。
Treatment of low flow high concentrated organic waste gas by biotrickling filter has been studied.
对生物滴滤器处理低流量、浓度有机废气进行了研究。
Treatment of low flow high concentrated organic waste gas by biotrickling filter has been studied.
对生物滴滤器处理低流量、浓度有机废气进行了研究。
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