| 摘要 |
<p>A tank has a base, corrugated side walls structurally mounted directly to the base, the corrugated side walls and the base defining a tank interior, the corrugated side walls having a trough and a crest, the trough being spaced within the inner tank receptacle relative to the crest; and a roof plate above the tank interior, the roof plate being structurally mounted to the corrugated side walls opposite the base. An inner tank may be inserted into the tank, the inner tank having a plurality of rigid or semi-rigid panels that are attached directly to adjacent panels to form a bottom wall and inner side walls of the inner tank.</p> |
