分析柱…滤头和保护柱作用于样品。
在铺设地毯的区域，应使用带过滤头的吸尘器除尘；
Use vacuum cleaners, equipped with exhaust filter, on carpeted areas.
本实用新型涉及水处理领域，尤其是水处理用的气水反冲洗滤头。
The utility model refers to the water disposal field, especially air-water backwash filter for water disposal.
滤杯通过卡箍与滤头固定在一起，然后与紧固在过滤支架上的蝶阀相固定。
The filter bowl is fixed together with the filter head through the clamp, and is fixed with the dish valve which is fastened on the filter holder.
在厦门市污水处理二厂的好氧生物滤池（CN池）中发现了溪沙蚕，其对滤池的主要影响是易造成滤头堵塞。
Namalycastis Abiuma was found in the aerobic biofilter(CN filter)in Xiamen Second Wastewater Treatment Plant. Namalycastis Abiuma may cause clogging of the filter nozzles.
建立了同时考虑针的流阻和滤头及容器内水柱影响的渗流分析模型，并得到线性流阻下地基渗透系数与容器内压力的解析关系。
Theoretical model was described considering both flow-resistance and water column of filter and container, and analytical solution was gained under linear flow-resistance.
建立了同时考虑针的流阻和滤头及容器内水柱影响的渗流分析模型，并得到线性流阻下地基渗透系数与容器内压力的解析关系。
Theoretical model was described considering both flow-resistance and water column of filter and container, and analytical solution was gained under linear flow-resistance.
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