noun
oxygen cylinder; oxygen tank
Refers to a portable pressurized container of oxygen, used in medical, diving, or industrial contexts.
病院で酸素ボンベを患者に取り付けた。
They attached an oxygen cylinder to the patient at the hospital.
ダイバーは酸素ボンベを背負って海
The diver dove into the sea carrying an oxygen tank on their back.