反循環(huán)礫石充填技術(shù) reverse circulation gravel pack: 反循環(huán)礫石充填gravel pack: 礫石充填; 礫石過濾層; 填礫pack gravel: 充填礫石gravel-pack gravel: 礫石充填用的礫石circulation pack: 循環(huán)充填下載手機(jī)詞典可隨時隨地查詞查翻譯
