短語詞組短語observation ? well 觀測孔observation E well 觀測孔simple hydrogeological observation in well 鉆孔簡略單純水文現(xiàn)象地質(zhì)測候observation well of groundwater 地下水觀測井observation well net 觀測井網(wǎng)multilayer observation well 混合觀測孔 返回 observation well