本发明提供的一种便携式救生带，体积小，携带方便 ，可根据使用者的腰围调节气囊带长度；
The portable life belt provided by the invention has small volume and can be carried conveniently as the gas-bag belt length can be regulated according to waistline of users;
本发明提供的一种便携式救生带，体积小，携带方便 ，可根据使用者的腰围调节气囊带长度；
The portable life belt provided by the invention has small volume and can be carried conveniently as the gas-bag belt length can be regulated according to waistline of users;
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