单词 | rille |
释义 | rille also rill (ril) n. 1. A long, narrow, roughly straight channel or groove on the surface of a solar system body like a planet or moon. 2. Variant ofrill. [GermanRille; see rei- in the Appendix of Indo-European roots, fromLow Germanrille; see rei- in the Appendix of Indo-European roots.] rilleAriadaeus, a lunar rille, photographed in 1969 by the crew of Apollo 10 |
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