 |
| |||
| composite columnar section; generalized columnar section | |||
|
综合柱状 剖面 图 : 3 phrases in 2 subjects |
| Desert science | 1 |
| Technology | 2 |
|
| |||
| composite columnar section; generalized columnar section | |||
|
综合柱状 剖面 图 : 3 phrases in 2 subjects |
| Desert science | 1 |
| Technology | 2 |