| 摘要 |
The cage for rearing fish has a frame and a perforated casing forming a closed chamber. This chamber contains one or more basic chambers, having a single apex and a base. The casing can rest on the frame, which can be outside it and have a belt in the equatorial position, also a tube running axialy through the chamber. There can be two basic chambers, secured together base-to-base, with their apexes pointing in opposite directions. Alternatively, there can be a cylindrical or prismatic portion between the bases. |
