| |||
| 主钥匙随车配备的，可以开车上多把锁的钥匙 | |||
| 主控键 | |||
| 管理锁; 万能钥匙系统; 对系统有最高权利的钥匙 | |||
| 万能钥匙 | |||
| ★ 主密钥 | |||
| 总钥锁; 总电键; 主钥匙; 主键; 总钥匙; 总键 | |||
|
master key : 27 phrases in 8 subjects |
| Business | 1 |
| Cryptography | 2 |
| Electronics | 8 |
| Exhibitions | 2 |
| Information technology | 8 |
| Public security | 1 |
| Technology | 3 |
| Telecommunications | 2 |