epsilon-type
| structural system
| epsilon type | |
| eng.geol. | 山字形构造 |
| structural system | |
| bridg.constr. | 结构体系 |
| oil од. | 构造体系 |
| |||
| 山字形构造 | |||
|
epsilon-type : 6 phrases in 3 subjects |
| Desert science | 1 |
| Hydroelectric power stations | 1 |
| Technology | 4 |