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bulb
 n.  1.【植物;植物学】球根;鳞茎。 2.球状物;(寒暑表的)水银球;灯泡;烧瓶;真空管;测温包。 3.【解剖学】球;〔pl.〕扁桃腺。&nbs...  detail>>
t bulb
球缘t型材  detail>>
t-bulb
球缘t字钢  detail>>