| 摘要 |
<p>The mast has modules provided with geometry of two types of rod modules e.g. single tube, and three parallel tubes with equilateral triangular shape. The modules are dimensioned, so as to allow the introduction of the modules in a form of package during transport and storage or telescope at a building site based on needs. A base module i.e. envelope module, is provided with a lifting mast using a pulley system.</p> |
