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| 混凝土核心 | |||
| 混凝土钻芯试体; 混凝土筒体; 混凝土芯样; 混凝土试块 | |||
| concrete core: 30 phrases in 4 subjects |
| Architecture | 1 |
| Electronics | 1 |
| Hydroelectric power stations | 4 |
| Technology | 24 |
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