 |
| |||
| 开关闭锁 | |||
|
switch blocking : 10 phrases in 6 subjects |
| Air defense | 1 |
| Business | 1 |
| Electric machinery | 1 |
| Electronics | 3 |
| Space | 2 |
| Technology | 2 |
|
| |||
| 开关闭锁 | |||
|
switch blocking : 10 phrases in 6 subjects |
| Air defense | 1 |
| Business | 1 |
| Electric machinery | 1 |
| Electronics | 3 |
| Space | 2 |
| Technology | 2 |