| 摘要 |
The device (1) has a spacer for raising a guide wire of vegetation and comprising a branch (40) with a proximal end and a distal end. A maintenance unit (5) maintains the branch in a vegetation raising position. The maintenance unit is movable between an inactive position and an active maintenance position of the branch in the raising position. An assembly (6) is made to interrelate another maintenance unit (3) maintaining another branch (20) of another spacer (2) in the raising position with the former maintenance unit during displacement. |
