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美国标准 | |||
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美国标准 | |||
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美国标准亦缩为 US Std, U.S. St. | |||
美国标准 | |||
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美国标准 |
United State Standard : 27 phrases in 12 subjects |
Aviation | 2 |
Desert science | 1 |
Earth sciences | 2 |
Economy | 4 |
General | 4 |
Geophysics | 1 |
Metallurgy | 1 |
Oil / petroleum | 1 |
Space | 2 |
Technology | 4 |
Telecommunications | 3 |
Textile industry | 2 |