irradiation
irradiationnoun[mass noun]- the process or fact of irradiating or being irradiated
照耀,发光;辐射
- (Optics)the apparent extension of the edges of an illuminated object seen against a dark background
(光学)光渗
语源- late 16th cent.: from late Latin irradiatio(n-), from Latin irradiare 'shine upon' (see irradiate)
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