短語(yǔ)詞組短語(yǔ)operation exposure duration 作業(yè)暴露時(shí)間long duration exposure facility 長(zhǎng)時(shí)照射設(shè)施;長(zhǎng)期暴露裝置Duration of exposure 時(shí)間;曝光時(shí)間;最大披露的期限;曝光期 返回 exposure duration