Englisch-Esperanto Übersetzung für annulus
Definition für annulus
- A ring- or donut-shaped area or structure
- Any topological space homeomorphic to the region in a plane between two concentric circles of different radius
- Structure in a fern that consists of differentially thick-walled cells on a sporangium that bend and distort as a result of drying
- The space contained between the centre well bore and any external tubing. Sometimes used for separated gas flow
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