该系统由立体循环一体化氧化沟污水处理区、滤罐和土地处理区组合构成。
The system comprises a sewage treatment area of an integrative oxidation ditch with vertical circulation, a filter tank and a ground treatment area.
无烟煤滤料同石英砂滤料配合使用是我国目前推广的双层快速滤池和三层滤池、滤罐过滤的最佳材料。
Anthracite filter used in conjunction with quartz sand is our current promotion fast filter and three-filter, the best material canister filter.
滤毒罐防毒面具的一部分，含有过滤装置，能将有毒成分从空气中除去。
The part of a gas mask that contains the filter for removing toxic agents from the air.
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