| 摘要 |
<p>An apparatus to insert netting or other articles into the ground surface are effectively fluidising the ground surface to permit the inserting including a frame (20) carrying a roller (30) having annular extensions (33) thereabout, the frame, and thus the roller being associated with vibration means (40) whereby the roller is caused to vibrate, the roller (32) limiting the incursion of the extensions (33) thereabout into the ground and thus defining the depth of inserting of the netting or other articles.</p> |
