| |||
calvaria | |||
upper wall | |||
hanging wall | |||
roof | |||
ceiling (风洞的) | |||
upper plate | |||
| |||
hanging wall | |||
| |||
ceiling |
顶壁 : 42 phrases in 9 subjects |
Architecture | 2 |
Automobiles | 3 |
Engineering geology | 3 |
Explosives and Explosive Ordnance Disposal | 2 |
General | 5 |
Oil / petroleum | 3 |
Outdoor activities and extreme sports | 2 |
Technology | 18 |
Wind Energy | 4 |