| 摘要 |
A heat-controllable storey floor contains a first set of concrete-free compartments (8) having convex, concave or toothed walls other than normal to the top and bottom walls and a second set of concrete-free compartments (18) of smaller diameter than the first set. The two sets are joined alternately. The first walls (3) of the sets are walled convex or concave (5) and have a rounded edge parallel to the bottom wall at closer space to the bottom than are the first walls (3). The alternating sets are joined to form a pipe system (2) linked up by truncated conical connections, the system being flowed by a gas or fluid held in the compartments. The sets form squares, trapezia or rectangles having rounded edges. The sets once joined form a curve or straight segment (14) of a pipeline system (2). |
