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- P2O5-SiO2系玻璃P2O5-SiO2 system glass
- 系system
- CaO-SiO2系玻璃CaO-SiO2 glass
- P2O5-SiO2玻璃phosphosilicate glass
- 院系department
- 系上to buckle up
- 系带chalaza
- Al2O-SiO2-P2O5-CaF2玻璃Al2O-SiO2-P2O5-CaF2 system glass
- 中文系department of Chinese language and literature
- 菜系style of cooking
- Li2O-CuO-P2O5玻璃Li2O-CuO-P2O5 glass
- 系的phyletic
- SiO2-P2O5-TiO2粉体powder of SiO2-P2O5-TiO2
- 系动词copula
- SnO-ZnO-P2O5玻璃SnO-ZnO-P2O5 glass system
- 全系holophyly
- Li2O-TiO2-SiO2-P2O5Li2O-TiO2-SiO2-P2O5
- 外语系department of foreign languages
- 家系stemma
- P2O5-Al2O3-SiO2系统P2O5 - Al2O3 - SiO2 system
