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

单词	polygonal ring structure
释义	polygonal ring structure [pǝ`lig·ǝn·ǝl `riŋ ´strǝk·chǝr] ^ASTRONOMY A lunar crater whose wall approximates a polygon in shape.
随便看	idler wheel idle-stop solenoid idle time idle trunk lamp idling jet idling system idocrase Idoteidae IDP id reaction idrialite IDU IDUR i-f i-f amplifier if and only if operation IF canceler IFF IFO IFR IFR terminal minimums IFR weather IF statement if then else if-then operation

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。