In the paper, we first analyzed the feedbackrelationship of the model, constructed system flow diagram, and proved validation of the model.
在文中，首先分析了模型中的主反馈关系，构建系统的物质流图和成本结构流图，并证明了模型的有效性。
2
The facial-feedback hypothesis argues, however, that the causal relationship between emotions and facial expressions can also work in the opposite direction.
然而，面部反馈假说认为，情绪和面部表情之间的因果关系可能反过来也是成立的。
3
Doing feedforward also helps in building great relationship between the team members since nobody takes feedforward personally as they do with feedback.