词汇	measurement of water-level
释义	measurement of water-level 稳压器
随便看	underground gas pipeline underground gas pipelines underground gas storage under ground gas storage underground gas storage reservoir underground gas storage well underground gas-storage well underground gate valve underground geological map underground geological radar underground geology underground geophysical prospecting underground geothermal brine underground geothermal water underground glory hole method underground glory-hole method underground goaf underground goal Underground gold mine underground gold treasury underground government underground grain depot underground granary underground grotto group underground group cavities