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| 空心块体砖 | |||
| 空心块体; 空心板 | |||
| 空心砖; 空心石块件; 空心砌块; 空心块 (体); 空心混凝土砌体; 空心混凝土块件; 空心方块 (一种防波堤块体); 空心混凝土砌块 | |||
| hollow block: 86 phrases in 6 subjects |
| Architecture | 3 |
| Hydroelectric power stations | 1 |
| Metallurgy | 3 |
| Project management | 1 |
| Rail transport | 1 |
| Technology | 77 |
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