| 摘要 |
<p>The building block contains the first modules (1,2,3 ) or the second modules (12,13,14) the shape of block with bevel edge and the bottom of quadrate with bevel edge. Every module is equipped at least with one intake and one exit, in the case of the first modules it is intake (4) and exit (5) with tooth system and in the case second modules it is intake (15) without tooth system.</p> |
