人類發明了很多保護女人的東西.....
UV LED Wavelength | Phoseon Technology 但總是不夠XDLED UV lights have a narrow spectral output centered around a wavelength, +/- 10nm. Phoseon products use 365nm, 385nm, 395nm, & 405nm wavelengths. ... The Sun is a source of the full spectrum of ultraviolet radiation, which is commonly subdivided into UV-...
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