 |
| |||
| hinged push-off steady arm; hinged push-off steady arm in compression; push-off steady arm; steady arm in compression | |||
|
zijwaartse drukpijp : 2 短语, 1 学科 |
| 运输 | 2 |
|
| |||
| hinged push-off steady arm; hinged push-off steady arm in compression; push-off steady arm; steady arm in compression | |||
|
zijwaartse drukpijp : 2 短语, 1 学科 |
| 运输 | 2 |