同义词
1)closed circuit breathing apparatus,闭路式呼吸器2)closed circuit breathing gear, closed circuit breathing rig,闭式回路呼吸器3)closed circuit breathing apparatus,闭式呼吸器4)semi-closed circuit helium-oxygen breathing apparatus,半闭式回路氦氧呼吸器5)semi-closed circuit breathing apparatus,半闭式回路潜水呼吸器6)semi-closed circuit rebreather,半闭式回路再呼吸器
