1.  known number
2.  datum

• 1. 已知数: datum | known number | The data | known
• 2. 已知数基准点: datum
• 3. 数据已知数基准点: datum

更多释义

• 1.通过已知数可以算出未知数。
  The unknown number can be calculated from the data.
  dict.yoduao.com
• 2.如果要想求出未知数，你首先得知道已知数。
  If you want to get the unknown number, you should know the known number first.
  dict.yoduao.com
• 3.说明：输入一个数，在已知数组中查找该数的位置，输入的数不存在数组中。
  Enter a number in the array to find the number of known positions, the number entered does not exist in the array.
  dict.yoduao.com

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