atomic frequency
| reference
| atomic frequency abbr. | |
| chem. | 原子频率 |
| Reference abbr. | |
| org.name. | 参考资料 |
| reference abbr. | |
| hydroel.st. | 标准 |
| interntl.trade. | 参考证明; 可备咨询者; 备咨; 身份保证人; 保人 |
| met. | 参阅 |
| met. од. | 基准 |
| sport. | 参照 |
| |||
| 原子频率 | |||
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atomic frequency : 7 phrases in 4 subjects |
| Geophysics | 1 |
| Metallurgy | 1 |
| Space | 3 |
| Telecommunications | 2 |