arithmetical
  (a.)算術的,算術上的
  arithmetical
  算術
  Ar·ith·met·ic·al a. Of or pertaining to arithmetic; according to the rules or method of arithmetic.
  Arithmetical complement of a logarithm. See Logarithm.
  Arithmetical mean. See Mean.
  Arithmetical progression. See Progression.
  Arithmetical proportion. See Proportion.
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  arithmetical
       adj : relating to or involving arithmetic; "arithmetical
             computations" [syn: arithmetic]