单词	annular gear
释义	annular gear noun : internal gear Word History First Known Use 1854, in the meaning defined above
随便看	levied levier leviers levies levies en masse levies in mass levigate levigated levigates levigating levigation levigations levigator levin Levine levins levirate levirates leviratic levis levises levisses levistica Levisticum levisticums

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