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grading instrument

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UK 
  • un.测坡水准仪;校准仪
  • Web分级仪器
un.
1.
测坡水准仪
2.
校准仪

Sample Sentence

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