| 释义 |
〔safelight〕A lamp having one or more color filters allowing moderate darkroom illumination without affecting photosensitive film or paper.安全灯：有一个或多个颜色滤光器的灯，能够保证暗室内照明适中而不致于影响感光的胶卷或纸板〔filter〕Any of various electric, electronic, acoustic, or optical devices used to reject signals, vibrations, or radiations of certain frequencies while passing others.滤光器，滤色镜，滤波器：一种电学的、电子学的、声学的或光学的设备，用于在通过其它物时限制特定频率的信号、振动或放射 |