单词	thread ring
释义	thread ring [机] 螺纹环
随便看	birall Bi'r'Alī biram birameous biramose biramosus biramous biramous appendage biramous, biramose biramous parapodium biramous type biramous type appendage Birao biraphid bira r. biraryl biras Bi'r ash Shuwayrif birational birational correspondence birational equivalence birational equivalent birational invariant birational isomorphism birationality ylfr ylfs ylfx ylfy ylfz ylgc ylgl ylgm ylgw ylgx せかいいちせかいいち【世界一】せかいかんせかいかん【世界観】せかいぎんこうせかいぎんこう【世界銀行】せかいてきせかいてき【世界的】せかいほけんきかんせかいほけんきかん【世界保健機関】