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| 活塞环张力 | |||
| 环形张力; 环向拉力 | |||
| 周边张力; 环形张力 | |||
| ring tension: 17 phrases in 6 subjects |
| Automobiles | 4 |
| Compressors | 1 |
| Nuclear and fusion power | 1 |
| Shipbuilding | 1 |
| Technology | 9 |
| Textile industry | 1 |
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