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- 擬Hamilton系統quasi-Hamiltonian system
- 擬Hamilton原理quasi-Hamilton principle
- 次二次Hamilton系統的對偶Morse指標及其閉特徵的穩定性Dual Morse Index for Subquadratic Hamiltonian Systems and the Stability of the Closed Characteristics
- Darboux變換的周期固定點導出的有限維可積的Hamilton系統(英文)Finite-Dimensional Integrable Hamiltonian Systems Obtained from Periodic Fixed Points of Darboux Transformation
- 文件系統file systems
- 生態系統ecological system
- 曲線擬合curve fitting
- 免疫系統immunologic system
- 擬人化personate
- 管理系統managerial system
- 擬制draw up
- 電力系統electric power system
- 神經系統nervous system
- 電腦系統computer system
- 管理信息系統management information system
- 電氣系統electrical system
- 擬余Hamilton原理quasi-complementary Hamilton principle
- 排水系統drainage system
- 嵌入式系統embedded system
- 通訊系統communication system
