| 摘要 |
<p>The module (16) has multiple supports that are arranged between a lower base portion and an upper base portion. The supports are equipped with inner and outer joints at the middle. The supports are hinged with the lower base portion at one end, and hinged with the upper base portion at other end. Multiple stop points for lifting gears are formed centrally at the upper base portion hinged with the supports. An independent claim is included for a method of operating base module.</p> |
