词汇	献本
释义	献本 presentation copy
随便看	drill through chest drill through the chest drill-through-the-leg platform drill thrust drill ticking drill string drill-string drill string behavior drill string compensator drill string compensatordsc drill string compensator, DSC drillstring failure Drill string failure drill string force drill string heave compensator drill string length drill string mechanics drill-string partial accident drillstrings drill-string tripping drillstring valve drill students drill students in music drill sub drill successive wells