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。
Man is the measure of all things.
最好的投资是那些既能推动经济又能保护生态系统的投资。
水产养殖的效率绝不能以牺牲动物福利或环境完整性为代价。
Never underestimate the power of a simple idea.