英语词汇ordnance datum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	ordnance datum
释义	Definition of ordnance datum in English: ordnance datum noun British The mean sea level as defined for Ordnance Survey. 〈英〉平均海面（为英国陆军测量局制定）
随便看	goodness of fit goodness of fit good news Good News Bible goodnight good-night goodnights good-nights good-now goodo good offices good-oh good oil good old boy good on her good on him good on you good (or bad or poor) show! good (or bad or poor) show! good organization good (or nice) thinking good (or nice) thinking good (or the best of) luck good (or the best of) luck Good Parliament

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Definition of ordnance datum in English: