Terms containing dual string completion

Subject	English	Chinese
oil	dual string completion	双管柱完井
tech.	dual string completion	双油管完井
oil	dual-string completion	双管完井
oil	single packer-single tubing string dual completion	单封隔器一单管双层完井
dril.	twin string dual-completion	双管两层完井
oil	twin-string dual completion	双管两层完井