“spiral ring structure”的概念、定义、翻译、参考文献-科学参考

单词	spiral ring structure
释义	spiral ring structure [`spī·rǝl `riŋ ´strǝk·chǝr] ^ASTRONOMY A lunar crater in which ridges spiral inward from the main wall across the floor.
随便看	drawdown ratio drawer draw-filing drawhead drawhole drawing drawing back drawing bristol drawing cloth drawing compound drawing die drawing in drawing of temper drawing out drawing paper drawing program drawing timber drawknife draw mark drawn finish drawn glass draw piece drawplate drawpoint draw radius

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