22cm地下连续墙
22cm Underground Retaining Wall
500 kV地下变电站
500 kV underground substation
500kV地下变电站
500 kV underground substation
500kV世博地下变电站
500 kV World-Expo underground substation
CNG地下储气井
CNG underground storage well
CO2地下处置
carbon dioxide disposal into deep stratum
CO2地下贮存
geological disposal of CO2
LPG地下洞库
underground storage of LPG
U形地下换热器
U-tube ground heat exchanger
U型管地下换热器
underground heat exchanger with U-pipe
板寨地下河
Banzhai subterranean stream
半地下变电站
semi-subterranean substation
半地下连续墙
no-embedded diaphragm wall
半地下式厂房
semi-underground powerhouse
半地下通风库
semi-underground ventilation storeroom