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| barn (核子有效截面单位=10⁻²⁴厘米²) | |||
| barn (1靶恩= 10⁻²⁴平方厘米) | |||
| barn | |||
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| barn | |||
| 靶恩: 2 phrases in 1 subject |
| Geophysics | 2 |
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