| 摘要 |
The second unit (2) comprises a spring component (11) which can adopt a first non-tensioned position, in which it holds the first unit (1) relatively loosely, and a second tensioned position, in which the first unit is relatively hardly held against the elongated component. The spring component is tensionable from the first to the second position by turning of the relatively loosely held first unit in relation to the elongated component. |
