“灰色滤光镜”概念、定义、翻译-科学时代

单词	灰色滤光镜
释义	美术、书法与摄影词汇手册灰色滤光镜 GR (grey filter)
随便看	knee bracing knee bracket knee brake knee buffer Kneecap knee clamp knee colter knee current knee cutter kneed timber knee frame knee frequency knee grip knee hole knee holly kneeing knee iron knee iron knee jerk knee joint knee joint knee lever kneeling fire kneeling trench knee pipe

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。