dlscrete-time systems的用法和样例：
例句
- The class of systems can be treated as linear nominal parts with norm-bounded uncertainties on both states and inputs.
文章所讨论的系统可以看作是在状态和输入上均有不确定参数的线性离散系统。 - Similarly, the study of continuous systems is steadily giving ground to that of discrete systems.
同样的，连续系统的研究正不断地让位于离散系统的研究。
