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| frost-thawing test | |||
| freeze-thaw test; freezing-thawing test; freezing and thawing test | |||
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| freezing and thawing test | |||
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| freezing and thawing test | |||
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| freezing and thawing test | |||
| 冻 融 试验: 4 phrases in 2 subjects |
| Rail transport | 1 |
| Technology | 3 |
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