资讯

BBC4 年
Proto self-contained breathing apparatus
It consisted of a divided rubber breathing bag containing 'Protosorb', which absorbed the carbon dioxide released from the body during exhalation, passing the air back through the oxygen supply ...
BBC4 个月
Proto self-contained breathing apparatus
It consisted of a divided rubber breathing bag containing 'Protosorb', which absorbed the carbon dioxide released from the body during exhalation, passing the air back through the oxygen supply ...