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radiance ['reɪdɪəns] n
gen. 放射輝度 River and Water Resources Glossary (Infrastructure Development Institute Japan)
n radiance | n ['reɪdɪəns] n
gen. 輝き news1 nf14; 赫き; 耀き
n optics radiance | n ['reɪdɪəns] n
gen. 立体角密度