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radioactive standard
| source
| radioactive standard | |
| agric. | 放射性标准源 |
| earth.sc. | 放射性标准 |
| el. | 放射性标准 |
| repr.biol. | 放射标准 |
| source | |
| gen. | 本; 来源 |
| hydroel.st. | 源头 |
| met. | 起源 |
| semicond. | 源区 |
| |||
| 放射性标准源 | |||
| 放射性标准源 | |||
| 放射性标准源核 | |||
| 放射标准 | |||
| 放射性标准 | |||
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radioactive standard source : 8 phrases in 4 subjects |
| China | 2 |
| Electronics | 1 |
| Nuclear physics | 3 |
| Technology | 2 |
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