短語(yǔ)詞組短語(yǔ)well head shut -in 井口關(guān)井well shut -in procedure 關(guān)井程序protective well shut -in device 油井保護(hù)關(guān)井裝置pressure measuring without well shut -in 不關(guān)井測(cè)壓 返回 well shut-in