STAT
发表于 2025-3-30 09:28:30
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拾落穗
发表于 2025-3-30 16:06:12
UV Radiation, Irradiation, Dosimetry able to detect in the rainbow-colored solar spectrum, adjoining the red end, invisible rays that generated heat when they impinged on absorbent surfaces. Shortly thereafter, in 1801, Johann Wilhelm Ritter likewise discovered radiation at the other end of the visible spectrum as well, beyond the vio