Influence factors associated to each other for support. The effects of one factor would contribute to enhance or destroy the other one. Absolutely avoid. The environment is a cycle and cycle related to the whole system.
Influence related to each other A factor in supporting each other. The effects of factors contributed to reinforce or destroy another part. Inevitably Environmental cycles and cycles related to the whole system.
Influence of connection to each other. As a factor in supporting each other. Effect of one factor will make or break a plugin. Another part is not inevitable The environment is related to both circuit and cycle system.