| 1. | 1unique streamlined design 2various filtering layers and large filtering surface without dead angle 1全球独创之三面体流线型设计,创意无限。 |
| 2. | Maintaining malt shell ' s intergrity and forming loose filter layer whose thickness may increase 15 - 20 % 可保持麦芽壳皮完整,形成疏松高效的过滤层,滤层厚度可增加15 - 20 % 。 |
| 3. | It is conclued that the filter layer can protect the core wall of earth - rock dam from flow erosion 结果表明,宽度不大的裂缝在合适的反滤层保护下,能防止心墙土体被水流冲刷。 |
| 4. | Add curves layer to lighten it , a photo filter layer to add more red , and a colour balance layer to add more orange 放入曲线层,以减轻它的照片反滤层,以增加更多的红色,一台彩色平衡层,以增加更多的橙色。 |
| 5. | The higher the concentration of fa was , the shorter the period became and the higher the iron concentration of the effluent at the same filter layer was 而且随着过滤时间的推移,投加富里酸浓度越高,相同取样口的出水亚铁浓度也越来越高。 |
| 6. | By sampling in different filter layer and analyse of water head damage in all sampling point , i draw a condusion about filter function of porcelain sand filter is superior to the general filters 通过滤层分层取样,对各取样点的水头损失的分析,得出瓷砂滤料较一般滤料过滤性能优越的结论。 |
| 7. | To facilitate drainage of groundwater and to maintain water flow , permeable rocks will be used for recompaction . filter layer and weepholes will also be installed . these will guarantee the normal flow of groundwater 为促进排水及保持正常水流,工程将使用具渗透性的石块作重新压实,同时安装过滤层及疏水孔,以确保地下水仍可如常流出。 |
| 8. | The special ring - type with three - dimensional depth of a product of function of the products is filtered layer , can stop sand one above 0 . 06mm , and is developing into the steady sand cake constantly , form the protective screen of the second dish of sand control , it is particularly remarkable to block sand performance 产品作用本产品特殊的具有立体深度的环状过滤层,能阻挡0 . 06mm以上的砂粒,并不断发展成为稳定的砂饼,形成第二道防砂屏障,挡砂性能尤为卓越。 |
| 9. | Designning well tube and drill - hole diameter in order to increase thickness of both annular packing gravel and water - resisting clay , nylon net packing around well tube filters , designing filter layer on the boundary between packing gravel and water - resisting clay and ramming the gravel by working the piston into the well after gravel packing completion and the filling clay for salt - water resisting etc . we succeeded in constructing 3 drinking - water wells in minqin county , proved the affectivity and feasibility of using it and giving a certain technical demonstration of construction of drinking - water well in the same similar to this area 通过孔径与管径的调配设计,增大环状粒料层和止水粘土层的厚度;滤水管外包尼龙纱网;粒料与止水粘土接触界面上设计反滤层;填粒后先行拉活塞利用水力夯实粒料层,再投粘土球止掉上部咸水等措施,在民勤县三口人饮水井施工中取得显著效果,证明了该套成井工艺的有效性和可行性,有望为同类地区人饮水井施工提供技术示范作用。 |