air bladder
air bladder
air bladder
n.Biology （名词）【生物学】
1.An air-filled structure in many fishes that functions to maintain buoyancy or, in some species, to aid in respiration.Also called swim bladder
鳔；气囊：一种充满空气的结构，许多鱼类用此来保持漂浮或者有些物种的鱼用此来帮助呼吸也作 swim bladder
2.See float
参见 float
