| |||
| 活塞环内圆面 | |||
| 内表面 | |||
| 木材向心面; 木里; 心材面; 向髓心的扳面 | |||
|
inside surface : 10 phrases in 5 subjects |
| Architecture | 1 |
| Bridge construction | 2 |
| Desert science | 1 |
| Sealing | 1 |
| Technology | 5 |
| |||
| 活塞环内圆面 | |||
| 内表面 | |||
| 木材向心面; 木里; 心材面; 向髓心的扳面 | |||
|
inside surface : 10 phrases in 5 subjects |
| Architecture | 1 |
| Bridge construction | 2 |
| Desert science | 1 |
| Sealing | 1 |
| Technology | 5 |