单词	collar tubing
释义	collar tubing 油管接箍
随便看	water activities water activity water-activity water activity aw water activity lowering agent water activity lowering agents water activity meter water activity of water activity value water-actuating relief valve Water adaptability Water-added amount water adding quantity water addition water additive water adit water adjusting cylinder water adjustment water administration water administration and supervision water administration department water administration law enforcement water administration supervision water administration system water administrative department