短語詞組短語gravel -pack sand control 砂礫充填防砂thru tubing gravel pack 過油管礫石充填permeable consolidated gravel pack 可滲透膠結礫石充填體slurry gravel pack operation 砂漿礫石充填作業(yè)screen tube gravel pack 割縫管礫石充填reverse circulation gravel pack 反循環(huán)礫石充填 返回 gravel pack