采用通风穿孔式散热的专利技术，使LED光源光衰小于5%；
1·Conclusion: GER was the important factor inducing and aggravating asthma, asthmatic patients with GER can be controled effectively and improve the lung ventilative function by anti-reflux treating.
结论：GER是诱发和加重哮喘的重要因素，哮喘合并ger患者作抗返流治疗能有效控制哮喘发作，改善肺通气功能。
2·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。