| 摘要 |
<p>Through a tubular inner space, the bush (1) inner and outer cover surfaces (2,3) can receive outwardly directed pressure which is equal in strength along the whole extent of the inner space. In certain cases, it is desirable that the pressure along parts has a lower value. This is achieved at the location by the parts of the tubular space has a greater distance to the cover surface (3) than along the remainder of the extent.</p> |
