 |
| |||
| roller drum gate; rolling gate; cylinder sluice gate | |||
| shallow cylindrical valve | |||
| cylindrical valve | |||
| paratoia cilindrica: 13 短语, 3 学科 |
| 一般 | 1 |
| 机械工程 | 5 |
| 运输 | 7 |
|
| |||
| roller drum gate; rolling gate; cylinder sluice gate | |||
| shallow cylindrical valve | |||
| cylindrical valve | |||
| paratoia cilindrica: 13 短语, 3 学科 |
| 一般 | 1 |
| 机械工程 | 5 |
| 运输 | 7 |