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| 公开/私有: | 公开 私有 |
- strains and stresses (21)
- 研究 (10)
- materials (9)
- strength of materials (9)
- history (4)
- interpersonal relations (4)
- social aspects (4)
- structural engineering (4)
- testing (4)
- world war, 1914-1918 (4)
- electronics (3)
- epidemics (3)
- farm life (3)
- female friendship (3)
- metals (3)
- structural analysis (engineering) (3)
- vampires (3)
- 工程材料 (3)
- 应力 (3)
- 应变 (3)
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