| 摘要 |
<p>The fixed section has slits (6, 7, 8) to allow for flexibility to absorb the irregularities of the support. Support points (9, 10) make for excellent sealing properties. Sides (11, 12) serve as guides for the jack section, which is inserted in between the two sides (11, 12). A mobile, female section is fitted into the fixed section. The fixed and mobile sections are held in a fixed position by means of holes (15) and pins. When the partitions, radiators, or ceilings are placed in position, the pins are withdrawn.</p> |
