从较慢的更新通道切换到较快的更新通道后，如果需要换回去，可能需要等待很长的时间。 There may be also photon emission by de-excited atoms and molecules inside the gases. Substantially of your radiation is emitted in the noticeable and infrared bands. The color is dependent upon temperature for that black-system radiation, and on chemical make-up with the emission spectra.[seventy three] ... https://fireratedductworkinductio78990.get-blogging.com/38088541/en1366-part-9-things-to-know-before-you-buy