片语
observation-well network观测井网
observation well of groundwater地下水观测井
observation-well response观测井压力反应
aperture of sight觇孔;观测孔
simple hydrogeological observation in well鉆孔简略单纯水文现象地质测候
observation ǖ well观测孔
observation well net观测井网
observation E well观测孔
multilayer observation well混合观测孔