arithmetic-series
| uniform-series
| factor
| arithmetic series abbr. | |
| bridg.constr. | 算术级数 |
| econ. | 等差数列 |
| interntl.trade. | 算术数列 |
| math. од. | 等差级数 |
| uniform series abbr. | |
| busin. | 同一系列 |
| factor abbr. | |
| busin. | 代理商 |
| hydroel.st. | 因素; 系数 |
| hydroel.st. од. | 因数 |
| IMF. | 生产要素 |
| interntl.trade. | 客账经纪商; 乘积 |
| math. | 因子，因素，商 |
| met. | 乘数 |
| sport. | 因子 |
| |||
| 算术级数 | |||
| 等差数列 | |||
| 算术数列 | |||
| ★ 等差级数 | |||
| 算术〔等差〕级数 | |||
|
arithmetic-series : 12 phrases in 6 subjects |
| Business | 1 |
| Construction | 1 |
| Economics | 4 |
| Electronics | 2 |
| Mathematics | 1 |
| Technology | 3 |