oxygen equilibrium
| model
| oxygen equilibrium | |
| tech. | 氧平衡 |
| model | |
| gen. | 模特; 型; 模特儿; 塑像; 做模型 |
| audio.el. | 机型 |
| environ. | 模型 |
| hydroel.st. од. | 模型 |
| met. | 原型 |
| |||
| 氧平衡 | |||
|
oxygen equilibrium : 12 phrases in 4 subjects |
| Earth sciences | 1 |
| Metallurgy | 4 |
| Technology | 6 |
| Water resources | 1 |