dirty是什么意思 bulb是什么意思 bulb的意思

bulb是什么意思 bulb的意思  

英音 [bʌlb] ;,美音 [bʌlb] ;,名词
1.球茎（如百合﹑ 洋葱﹑ 郁金香等植物的地下茎）
2.（也作light bulb）电灯泡,a modified bud consisting of a thickened globular underground stem serving as a reproductive structure,a rounded part of a cylindrical instrument (usually at one end),a rounded dilation or expansion in a canal or vessel or an,lower or hindmost part of the brain; continuous with spinal cord; (bulb' is an old term for medulla oblongata),electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity,vein of bulb of vestibule bulb 前庭球静脉,bulb bearing 生鳞茎的,bulb of penis 阴茎球,bulb of percussion 打击形成半锥体,condensing bulb 冷凝瓶,flame bulb 焰球,head bulb 头球,laminated bulb 膜被鳞茎,medullary bulb 延髓,bulb stern 球形船尾,bulb n.1.球茎（如百合﹑ 洋葱﹑ 郁金香等植物的地下茎）2.（也作light bulb）电灯泡,hot bulb 热球,hair bulb 【医】 毛球,bulb shaped adj. 球茎形的；灯泡状的,dry bulb a. 干球的