In this paper, the problem of pre-trigger existing in dynamic spot welding self-adaptive control system is researched on the basis of experiments.

对动态电阻点焊自适应控制系统中存在的提前触发问题进行了实验研究。

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We buy when an ETF is above its average and sell if it falls below a pre-determined trigger point.

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For instance, how about having a 911 call trigger a pre-mapped route via GIS so the local rescue squad can respond ASAP with traffic lights synchronized along the way?

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