短語詞組短語effective exposure time [攝]有效曝光時(shí)間effective life time 有效壽期;翻譯effective firing time [軍]有效射擊時(shí)間effective reaction time 有效反應(yīng)時(shí)間effective reverberation time 有效混響時(shí)間effective e time 有效時(shí)間effective regrowth time 有效再生長時(shí)間effective storage time 保存時(shí)效effective operation time 有效作業(yè)時(shí)間 返回 effective time