套管casings for export: 出口腸衣casingline: 下套管鋼絲繩casings for pipe-lines: 管線套casingless-completion: 裸眼完井casings of metal for oilwells: 油井金屬套管下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
