| 摘要 |
A tank for storing liquid products, particularly a large capacity tank 1, comprises a bottom 5, whose center 6, is at a level below the level of the edge of the bottom. Drainage channels 7, consisting of a ramp 8, as floor with lateral plates 10, as sides, bring the undesirable materials to the edge of the tank where they can be drained out of the tank through drainage tubes.
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