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- 高强度Al-Cu系合金大尺寸封闭环形铸件铸造工艺The Casting Process of Large Closed Annular Castings Made of High Strength Al-Cu Alloy
- Cr-Cu系合金Cu-Cr alloy
- 系system
- Mn-Cu系高阻尼合金Mn-Cu high damping alloy
- Ti-Cr-V-Fe系合金Ti-Cr-V-Fe alloy
- Ti-Zr-Ni-Cu系Ti-Zr-Ni-Cu system
- 院系department
- 系上to buckle up
- Cu-Te-Cr合金Cu - Te - Cr alloys
- 系带chalaza
- 中文系department of Chinese language and literature
- Cu-Cr-Ti合金Cu-Cr-Ti alloy
- 菜系style of cooking
- 系的phyletic
- 科系department
- Cu-Cr-Zr-Y合金Cu-Cr-Zr-Y alloy
- 系动词copula
- 全系holophyly
- Cu-Cr-Zr-Ce合金Cu-Cr-Zr-Ce alloy
- 外语系department of foreign languages
