| 1 | Wells, well completion process is extremely important, we must demand is large-diameter steel tube. | |
| 2 | Millions of tube wells were drilled in the aim of providing villagers with clean, germ-free water. | |
| 3 | Increasing demands for water, in particular to irrigate the rice crop, have led to greater dependence on tube wells. | |
| 4 | The effect of deep tube well use on the incidence of childhood diarrhoea was assessed using a random effects negative binomial regression model. | |
| 5 | In this paper the design of dewatering and drainage by pipe well-points for deep foundation pit excavation of a metro station in Shenzhen city is presented. |
Copyright © Purple Culture Co., Ltd. 2001 - 2026. All right reserved.
