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well-sinking ['wel'sɪŋkɪŋ]
hydroel.st. 井筒下沉; 沉井
well sinking ['wel,sickiŋ]
agric. 下井筒
dril. 钻井
eng.geol. 打井
hydroel.st. 沉井; 凿井
tech. 井的下沉; 井筒下沉; 沉井法; 井筒下沉法
water.res. 下井管
well-sinking
: 4 phrases in 2 subjects
Hydroelectric power stations2
Technology2