difference-set
| code
| difference set | |
| busin. од. | 差集 |
| code | |
| gen. | 为...编码 |
| el. | 规则 |
| hydroel.st. | 编码; 标准 |
| hydroel.st. од. | 法规 |
| met. | 码; 电码; 符号; 标记; 规则 |
| |||
| ★ 差集 | |||
| 差集 (合) | |||
|
difference-set : 10 phrases in 7 subjects |
| Air defense | 1 |
| Business | 2 |
| Cryptography | 1 |
| Mathematics | 2 |
| Scientific | 1 |
| Space | 1 |
| Technology | 2 |