| 摘要 |
A telescopic greenhouse, sunroom or conservatory comprises one fixed and one mobile shell 1 & 2. The mobile shell 1 being adapted to extend the usable internal volume of the structure whilst in the extended position, and in the contracted position to form an insulation skin to the fixed shell, and to create a sealed air gap between the outer and inner shells over their full length when heat conservation is more important than internal volume. <IMAGE> |
