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十亿分之一
| 秒
| "十亿分之一" | |
| nautic. tech. | parts of billion |
| 十亿分之一 | |
| gen. | billionth |
| agric. | part per billion |
| chem. | parts per billion |
| earth.sc. | billionth |
| ecol. | parts per billion |
| el. | parts per billion |
| tech. | billionth; part per billion |
| telecom. | billi- |
| 秒 | |
| tech. | second |
| |||
| part per billion (ppb) | |||
| parts per billion (ppb, 10⁻⁹，指美、法) | |||
| billionth (10⁻⁹); part per billion (10 ~9) | |||
| billi- | |||
| parts per billion | |||
| |||
| nano- | |||
| |||
| parts per billion | |||
| |||
| parts of billion (ppb) | |||
| |||
| billionth | |||
| |||
| billionth | |||
| |||
| parts per billion | |||
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十亿分之一 : 4 phrases in 4 subjects |
| Air defense | 1 |
| Architecture | 1 |
| Business | 1 |
| General | 1 |
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