 |
| |||
| circular bead (welding); circumferential seam | |||
| circular welding; circular bead | |||
| girth joint | |||
|
junta circular : 3 短语, 2 学科 |
| 机械工程 | 1 |
| 运输 | 2 |
|
| |||
| circular bead (welding); circumferential seam | |||
| circular welding; circular bead | |||
| girth joint | |||
|
junta circular : 3 短语, 2 学科 |
| 机械工程 | 1 |
| 运输 | 2 |