柔性囊的英文

• flexible bag
• flexible bladder

• 柔性:    flexibility
• 囊:    bag; pocket; sack; purse
• 可潜器轻壳内浮力平衡柔性囊:    flexible variable ballast bag of submersible
• 弹性囊:    elastomeric bladder
• 两性囊:    hermaphroditic pouch; hermaphroditic vesicle