单词	drill string
释义	drill string 钻柱
随便看	flexible pipe joint flexible pipe line flexible pipeline cleaner flexible pipeline pig flexible pipe union flexible piping flexible piping union flexible place flexible plan flexible plastic flexible plastic-covered cable flexible plastic disc flexible plastic disk flexible plastics flexible plastic sleeve flexible plastic surgical depressor flexible plate flexible plate supersonic nozzle flexible platform flexible plunger method flexible polyethylene flexible polyhedron search flexible polyion flexible polymer flexible polyvinylchloride 53135251 531352511 531352521 531352534 531352535 531352554 53135351 531354 531354251 5313543*34 41203 41204 41205 41206 41207 41208 41209 41210 41211 41212