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effective protection

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  • un.有效防护
  • Web有效保护;实际保护;有效保护率
un.
1.
有效防护

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