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- low filter bed 低渗透层
- 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 results show that aluminium alloy foam has a high filter efficiency, low filter resistance, large infiltration coef... 证明所研制的泡沫铝具有过滤效率高、过滤阻力小及渗透系数大的特点，其透流性能优良。
- In our scheme, a mixture of butterworth low filter was taken as the transform function which generated a cancelable template. 采用以巴特沃斯低通滤波器为核的函数组作为生成可撤销模板的变换函数。
- 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；
- It was believed that the primary reason of the second propagation of Cyclops was the low filtering velocity and the long retention time in the filters. 指出滤池滞水区停留时间长、流速低是造成剑水蚤二次繁殖的主要原因。
- The return value is the address of whatever device object is immediately underneath yours, which can be the PDO or the address of some lower filter device object. 返回值是任何在你的设备之下紧挨着的设备对象的地址，这个设备对象可以是PDO或者一些较低过滤设备对象的地址。
- She stooped low to look under the bed. 她弯下腰看床底下。
- 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 system first calls the AddDevice functions in any lower filter drivers specified in the device key for the device, in the order in which they appear in the LowerFilters value. 对于这个设备，系统首先调用在设备关键中指定的低级过滤驱动中的“添加设备”函数，在这个顺序中出现的较低过滤器值。
- The government is trying to keep a low profile on this issue. 政府力图在这个问题上保持低姿态。
- 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 singer forced his low notes. 那位歌手勉强唱出低音。
