CONCLUSION: Application of hyperoxic Ringer's solution during the early post injury stage is obviously beneficial to the improvement of pulmonary injury.

Bio - degradation role of aerobiotic organic substance and relationships between biological degradation and dissolved oxygen were stated, which provided theoretical basis for waste water reatment.

Studying on drop temperature effect, add humidity effect, balance of carbon and oxygen effect, absorbing dirt effect, killing germ effect, decreasing noise effect and air anion effect.