 |
| |||
| variable-message sign; variable message traffic sign; matrix sign | |||
| variable traffic sign | |||
|
signal routier variable : 2 短语, 1 学科 |
| 通讯 | 2 |
|
| |||
| variable-message sign; variable message traffic sign; matrix sign | |||
| variable traffic sign | |||
|
signal routier variable : 2 短语, 1 学科 |
| 通讯 | 2 |