单词	irradiation
释义	irradiation /ɪˌreɪdɪˈeɪʃ(ə)n / noun [mass noun] 1The process or fact of irradiating or being irradiated: ultraviolet irradiation... Different concentrations of BPA as well as different periods of irradiation with thermal neutrons were studied. But he stressed that irradiation is actually a process which should make some products safer. Neutron or ion irradiation hardens the material but not enough to prevent use in nuclear reactors. 2 Optics The apparent extension of the edges of an illuminated object seen against a dark background.
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