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cap rock
dril. 盖层
earth.sc. 冠〔覆〕岩
eng.geol. 岩顶; 盖岩; 护面块石
met. 盖保岩; 冠岩
oil 顶盖层
tech. 覆岩; 岩盘; 盖顶块石; 顶盖岩
cap-rock
el. 波堤的防护面块石; 冠岩; 表层岩石
cap rock: 9 phrases in 4 subjects
Drilling2
Engineering geology2
Oil / petroleum2
Technology3