 |
| |||
| double enclosure; double protection | |||
| cumulative protection | |||
| dual protection | |||
| |||
| double-leaf gate; double gate | |||
| |||
| double gate (Schleusen) | |||
|
Doppelschutz : 1 短语, 1 学科 |
| 专利 | 1 |
|
| |||
| double enclosure; double protection | |||
| cumulative protection | |||
| dual protection | |||
| |||
| double-leaf gate; double gate | |||
| |||
| double gate (Schleusen) | |||
|
Doppelschutz : 1 短语, 1 学科 |
| 专利 | 1 |