subject indexing
| method
| subject indexing | |
| work.fl. | 标引; 主题标引 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 标引; 主题标引 | |||
|
subject indexing : 3 phrases in 2 subjects |
| Librarianship | 2 |
| Technology | 1 |