The ballonet inside the survival pack can be aerated and placed into the bag to postpone the sink time of the survival pack, so as to help a drowned person catch the survival pack.
救 生包内小气球使用时，吹大来放入袋子中，可延缓救生包下沉的时间，以利 于溺水者抓住；
The ballonet inside the survival pack can be aerated and placed into the bag to postpone the sink time of the survival pack, so as to help a drowned person catch the survival pack.
救 生包内小气球使用时，吹大来放入袋子中，可延缓救生包下沉的时间，以利 于溺水者抓住；
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