单词 | Radiations,Visible |
释义 | Radiations,Visible《英文msh词典》Radiations,Visible [入口词] Radiations,Visible [主题词] Light [英文释义] That portion of the electromagnetic spectrum to which the human eye is sensitive. Light is about 400 to 800 nanometers in wavelength,i.e.,between the ultraviolet and infrared spectra. |
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