优 地槽 | |
gen. | eugeosyncline |
优地槽 | |
earth.sc. | eugeosynclinal |
期 | |
desert. | age |
econ. | issue |
geol. | stage |
oil | stage |
sport. | period |
岩浆活动 | |
hydroel.st. | magmatic activity |
| |||
eugeosynclinal | |||
eugeosyncline; pliomagmatic zone | |||
| |||
eugeosyncline |
优地槽 : 8 phrases in 3 subjects |
Geology | 1 |
Oil / petroleum | 5 |
Technology | 2 |