出水水封槽
water sealed tank for water outlet
白水封闭
close recycle of white water
White-water Closure
whitewater closure
白水封闭循环
white water closure cycle
white water system
充压伸缩式水封
pressure-filled telescopic water seal
地下水封储油库
underground oil storage caverns with water curtain
地下水封洞库
underground water sealed caverns
地下水封石洞油库
water-sealed underground oil storage in rock caver
underground water sealed oil storage in rock caverns
water-sealed underground oil storage in rock cavern
underground water-sealed oil storage cave
underground water-sealed cavern
地下水封石油洞库
underground petroleum storage caverns
多管水力坐封封隔器
multistring hydraulic-set packer