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datum plane英英字典_datum plane剑桥英语解释_datum plane柯林斯英文解释_开心英文字典_柠咚词
开心英文字典

datum plane

D 开头单词

柯林斯词典

    datum plane (also datum level or datum line)

  • 1. N the horizontal plane from which heights and depths are calculated 基准面[surveying]

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