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| 胀缩〔热胀〕间隙 | |||
| 膨胀余隙; 膨胀间隙; 伸缩缝隙 | |||
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expansion clearance : 4 phrases in 3 subjects |
| Automobiles | 1 |
| Technology | 2 |
| Wind Energy | 1 |
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