方法收集耳气压伤和鼻窦气压伤住院的飞行人员低压舱检查资料170份，对其进行分类统计。
Methods The data in HCT was collected in 170 aircrew with barotraumas and classification statistic was did.
结论当人体的环境压力增加时，经面罩提供大于咽鼓管通气阻力的正压呼吸可以预防耳气压伤的发生。
Conclusions When environmental pressure was added, positive pressure breathing higher than the ventilative resistance of the Eustachian tube could prevent ear barotraumas.
结论当人体的环境压力增加时，经面罩提供大于咽鼓管通气阻力的正压呼吸可以预防耳气压伤的发生。
Conclusions When environmental pressure was added, positive pressure breathing higher than the ventilative resistance of the Eustachian tube could prevent ear barotraumas.
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