microfilm code
| system
| microfilm code | |
| busin. | 缩微符号 |
| system | |
| gen. | 体 |
| IMF. | 安排 |
| leath. | 网 |
| med. | 派 |
| met. | 装置 |
| met. од. | 系 |
| tech. | 制度; 方法 |
| tech. од. | 体系; 系统 |
| |||
| 缩微符号 | |||
|
microfilm code : 4 phrases in 3 subjects |
| Business | 2 |
| Earth sciences | 1 |
| Electronics | 1 |