| 摘要 |
The invention concerns a sealing element (10) of elastic material comprising a tubular main body (12), the peripheral wall (22) of which encloses a hollow space with a connecting passage (24) for fluids, wherein the peripheral wall (22) in the region of the connecting passage (24) is so designed in respect of elasticity of the material, wall thickness and inside diameter, that twisting of the main body (12) causes a constriction of the hollow space in the region of the connecting passage (24).
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