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| United States Customary System | |||
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| U.S. Customary System (The system of weights and measurements maintained by the National Bureau of Standards in the United States) | |||
| US Customary System | |||
| U.S. Customary System | |||
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традиционная Американская система единиц : 1 短语, 1 学科 |
| 油和气 | 1 |