1) the level hole perpendicularity sand pocket well is allied with self flowing oozes
水平孔-垂直砂袋井联合自流排渗体
2) vertical horizontal jointed seepage system
垂直水平联合排渗法
3) Vertical-combined seepage draining
垂直水平联合排渗
4) Horizontal hole vertical pocket type sand well
水平孔-竖直袋状砂井
5) self-flowing well to get rid of seepage
自流排渗井
6) combination pattern of vertical and horizontal wells
水平井-直井联合布井
补充资料:砂袋
1.装着砂的袋子。一种体育训练器具。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条