Lub qhov rooj iav tempered iav muaj qhov ua tau zoo tiv thaiv hluav taws, thiab yuav tsis muaj kev hloov pauv uas cuam tshuam rau cov tsos thiab kev ua haujlwm nyob rau hauv lub sij hawm ntev irradiation ntawm ultraviolet rays.

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3 teev hluav taws kub ntsuas iav,hluav taws kub glazed sab hauv qhov rooj,20 feeb qhov rooj nrog iav,hluav taws kub ntsuas iav qhov rooj lag luam,hluav taws kub glazed hnab tshos qhov rooj,3 teev hluav taws kub ntsuas iav,dawb sab hauv hluav taws qhov rooj nrog iav,hluav taws kub glazed sab hauv qhov rooj,hluav taws kub ntsuas qhov rooj nrog iav vaj huam sib luag,hluav taws kub ntsuas iav qhov rooj lag luam,ob chav hluav taws qhov rooj nrog iav,3 teev hluav taws kub ntsuas iav,dawb hluav taws qhov rooj nrog iav,hluav taws kub ntsuas iav qhov rooj lag luam,45 feeb hluav taws ntsuas qhov rooj nrog iav,hluav taws kub glazed sab hauv qhov rooj