Note that the path must be a closed loop - that is, the first point of the first Edge object in the path must have the same location as the last point of the last Edge object.
注意,路径必须是一个闭环—也就是说,路径中第一个Edge对象的第一个点必须与最后一个Edge对象的最后一个点的位置相同。
Negative feedback loop — a closed path of action and reaction that self-limiting rather than self-reinforcing.
负反馈循环——在自我限制和自我增强的行为与反馈之间一条封闭的回路。
Feedback loop — a closed path that connects an action to effect on the surrounding conditions which, in turn, can influence further action.
反馈循环——在一个循环条件下连接行为和结果的封闭回路,依次的,能影响更多行为。
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