The Houston Metro system has successfully tested the Breathe Safe system, which USES Ultraviolet Germicidal Irradiation to kill up to 99 percent of certain types of bacteria.
休斯顿地铁系统已成功测试了呼吸安全系统，它使用紫外杀菌照射杀死某些类型的细菌，致死率高达99%。
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The effect of catalyst composition, microwave irradiation time and system pressure on the reaction was investigated.
考察了催化剂组成、微波辐照时间和体系压力对反应的影响。
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CONCLUSIONS Ultraviolet irradiation may activate fibrinolytic system and solve the thrombus near vascular anastomosis.