| 摘要 |
<p>The tool has a carrying unit for providing a cavity in the ground, where the carrying unit is associated with a drilling module (A). An introduction unit is arranged to introduce bulbs into the cavity, where the introduction unit is associated with a power supply module (B). The power supply module cooperates with the drilling module. The drilling module is arranged with a reserve unit for reserving the ground in the cavity and for releasing the ground. The drilling module is arranged with a central rod (1).</p> |
