| 摘要 |
<p>Glass fibre reinforced mat or roving is used as outer material with foam plastics between this and glass fibre reinforced plastics inner layer, the whole tightened and drawn in by nylon webbing to form a cylindrical house structure, cut away at the edges to form projecting porches or roof portions. Breaks in the floor are for ventilation and a branch piece below the cylinder structure acts as services duct.</p> |
