您要查找的是不是：
- earthworm filter bed 蚯蚓生态滤池
- The filter bed is rinsed with the feed liquor for 3.5min. 冲洗3.;5min;纳污滤层即可复原。
- Backwashing is one of the methods to maintain a filter bed clean. 反冲洗是保持滤床清洁的方法之一。
- The functions of the hydrophyte filter bed(HFB) for improving source water quality were surveyed in terms of microcystin and trace organic pollutants. 从对藻毒素和微量有机污染物的去除方面考察了水生植物滤床(HFB)在改善源水水质方面的效果。
- Filter bed should be exposurd as less as possible because alternation of exposure and immersion is disbennifit to the penetrability of filter bed. 依据水质资料分析了水源水质安全保障。
- The result of removal of CODCr and NH3-N from urban sewage was experimentally investigated by using biological aerated filter bed with double filter material of slag and zeolite. 研究炉渣-沸石双层滤料曝气生物滤池处理城市污水中CODCr和NH3-N的去除效果,试验结果表明:滤池中两种滤料显示出良好的互补性,滤池对CODCr和NH3-N的去除率稳定;
- When pH was 6.65, filtration rate was 8m/h and Do was 6.5mg/L, there existed the function relation between ferrous ions concentration and filter bed depth. 当pH为6.;65、滤速为8m/h、DO为6
- This paper discussed water liquor acts on micrinite in the calcareous clay at the bottom of saline aquifer and put forward the concept of filter bed of salinity. 本文讨论了咸质含水组底部钙化粘土微观粘粒与水溶液的相互作用，提出了“滤盐层”的概念。
- It is indicated from the reasearch result of clearing silt that, the penetrability can be better restored after clearing the silt on the surface of filter bed. 清淤试验研究结果表明，通过清除滤床表层淤泥可以使滤床的渗透性得到很好的恢复，清淤的办法需在取水工程停止运行的前提下进行；
- The enough oxygen assures the aerobic treatment. In the traditional microbe filter bed,the oxygen is provided by physical ventilation,whether the supplied oxygen is abundant or not directly influences the treatment efficiency. 充足的氧气是进行好氧处理的保证,在传统的生物滤池中,靠的是自然通风供氧,供氧的好坏直接影响到生物滤池处理的效率。
- By controlling operation parameter after filter bed having been inoculated, the technology has removed iron and manganese successfully from groundwater with high concentration of iron and manganese. 方法以无烟煤作为生物除铁除锰滤池的滤料，在滤池接种后，通过对运行参数的优化调控，实现高铁高锰地下水的除铁除锰。
- The oral opening in an earthworm is small. 蚯蚓的口是很小的。
- Therefore,the combined process of self-circulating rotating biological disk(RBD)and aquatic plant filter bed(APFB)was designed to purify rural domestic wastewater in Taihu Lake Basin. 针对农村生活污水排放量小、有机物浓度相对偏低、日变化系数大、间歇排放且不易收集的特点,提出了自回流生物转盘与水生植物滤床组合工艺,并开展了处理太湖流域农村生活污水的研究。
- The brook warbled over its rocky bed. 小溪潺潺流过多石的河床。
- Used the omphacite as under stratum medium in the filtering bed is to purify to drinking water and waste water.It's new and efficient filter material around the world. 若您有相关的交易需求或想了解绿辉石砂滤料更多更详细的产品介绍信息，最新的价格/报价和批发销售信息，请与我公司联系。
- The wastewater consist of the sludge flushed out from the sedimentation tanks and the wash water disposed from the filter beds. 这些污水主要来自沉淀池或澄清池的排泥水和滤池的反冲洗排水，这些污水如果不经处理直接排入水体，不但污染水体，而且浪费了大量的水资源。
- She rushed off to work leaving her bed unmade. 她匆忙去上班连床都没铺好。
- You need to filter the drinking water. 你需要把饮用水过滤。
- A mosquito netting completely surrounds our bed. 一顶蚊帐把我们的床完全围住了。
- A filter traps dust from the air. 过滤网可存住空气中的尘埃。
