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| 同质〔同量〕异位素; 同量异序元素 | |||
| 同量异序元素; 核同质异位素 | |||
| 异序素 | |||
| 同量异序元素; 同量异位素质量数相同 | |||
| 等压线 | |||
| 同量异位素 | |||
| 同质［量］异位素; 等权 | |||
| 同质异位素; 同量异序素; 等主应力线; 等气压线 | |||
| isobar: 25 phrases in 10 subjects |
| Agriculture | 2 |
| Chemistry | 2 |
| Desert science | 2 |
| Earth sciences | 2 |
| General | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 2 |
| Rail transport | 1 |
| Technology | 11 |
| Wind Energy | 1 |
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