For systems, the analogue of a face-lift is to add to the control graph an edge that creates a cycle, not just an additional node.
对于系统,翻版的模拟是在控制图中添加一个创建循环的边,而不仅仅是一个附加节点。
我的态度是,如果你把我推向你认为的弱点,那么我会把这个被认为的弱点变成优势。
Use music to spread positive energy.