| 释义 |
arithmetic progressionBrE /ærɪθˌmetɪk prəˈɡreʃn/ NAmE /ærɪθˌmetɪk prəˈɡreʃn/ (also arithˌmetic ˈseries ) noun a series of numbers that decrease or increase by the same amount each time , for example 2 , 4 , 6 , 8 算术数列,等差数列(如 2、4、6、8) ➡ compare geometric progression |