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optical system

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  • un.光学系统
  • Web光具组;光路系统;光学形式
un.
1.
光学系统

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Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard
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