atomic oxygen
| environment
| atomic oxygen | |
| agric. | 氧原子 |
| environment | |
| bridg.constr. | 周围情况 |
| dril. | 周围环境 |
| earth.sc. | 外界 |
| eng.geol. | 包围; 环绕 |
| environ. | 环境 |
| hydroel.st. | 环境 |
| space | 设备; 设施 |
| sport. | 周围 |
| |||
| 氧原子 | |||
| 原子氧 | |||
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atomic oxygen : 26 phrases in 5 subjects |
| Aviation | 9 |
| Chemistry | 2 |
| Electronics | 1 |
| Space | 12 |
| Technology | 2 |