| 摘要 |
<p>The joint has concrete-cast retainer units (2, 2A) projecting into vertical recesses (4, 4A) of track systems (10, 10A). The retainer units of adjacent track systems are connected with one another by connecting units (5, 7, 7A), where front surface of the track systems are molded by toothing (12, 12A). The toothing are formed by horizontal recesses in the front surfaces of the track systems.</p> |
