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%。
Like you we wait and hold our breathe, knowing that the old system is creaking at the joints and cannot hold together much longer.
和你们一样我们在屏住呼吸等待着，知道旧的系统的关节在吱吱作响并且不能在更久的牵引两个部分。
Remember you want your house to breathe, but you want it to breathe in the right places which would be through the HVAC system not around windows and doors.
你要记住你的房子了呼吸，但你希望它在正确的地方呼吸，这将通过空调系统和门不在身边的窗口。
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