arithmetically

1. 1.

   In a way characterized by addition (of increments) rather than multiplication (by factors) or exponentiation (by exponents): by an arithmetic progression.

   以算术级数的方式,即通过增量相加而非因数相乘或指数乘方

2. 2.

   In terms of arithmetic.

   就算术而言

就算术而言；算术上；[数] 用算术方法