| 摘要 |
A cage and cage cover combination having a cage cover having a plurality of stacking lugs on its upper surface, at least one stacking lug located in a middle region of the upper surface of the cover and at least one stacking lug located at a side region of the upper surface of the cover. The combination also includes an animal cage having a plurality of locating rings arranged in a middle region of its lower surface, where the at least one stacking lug located in the middle region of the upper surface of the cove is configured to couple with at least one locating ring of the lower surface of the animal cage and where the at least one stacking lug located at the side region of the upper surface of the cover is configured to match up to an lower edge of the bottom surface of the cage, such that when an animal cage is lowered onto the cage cover, the animal cage is securely retained on top of the cage cover.
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