carbon-nitrogen | |
geol. | 碳—氮 |
ratio | |
gen. | 收音机 |
econ. | 百分率 |
math. | 比率,比 |
met. | 系数 |
sport. | 比值 |
stat. | 定量; 比重 |
| |||
碳—氮 |
carbon-nitrogen: 41 phrases in 14 subjects |
Agriculture | 5 |
Automobiles | 1 |
Aviation | 2 |
Chemistry | 2 |
Desert science | 3 |
Earth sciences | 5 |
Ecology | 4 |
Geology | 3 |
Metallurgy | 1 |
Oil / petroleum | 2 |
Oil processing plants | 1 |
Space | 2 |
Technology | 9 |
Water resources | 1 |