| 摘要 |
<p>An assembly for forming a concrete structure, the assembly comprising a first side wall (2) comprising a pair of opposing parallel wall panels (3) defining a void (13) therebetween, and a base tray (4) comprising a receptacle coupled to said side wall (2) at a lower end thereof, said first side wall (2) having an opening (14) in an inner wall panel defining a flow path between said void and said receptacle.</p> |
