| |||
可变字段; 变长字段 | |||
可变磁场 | |||
可变场 | |||
变化场 | |||
变量场 | |||
可变信息组; 可变域 | |||
| |||
著录信息块 |
variable field : 33 phrases in 11 subjects |
Chemistry | 1 |
Data processing | 4 |
Electricity | 1 |
Electronics | 8 |
Information technology | 6 |
Librarianship | 2 |
Multimedia | 1 |
Oil / petroleum | 1 |
Space | 3 |
Technology | 4 |
Telecommunications | 2 |