英语词汇film projection optical system怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	film projection optical system
释义	film projection optical system 简明释义放映光学系统网络释义 1 [电影]?放映光学系统 ... 放映队 film projection team; 放映光学系统 film projection optical system; 放映合成摄影 projection process photography; ...
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英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。