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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Ministers are also looking at ways to make it easier for relatives of residents to trigger spot checks anonymously.

BBC: NEWS | Health | Spot-check boost for care homes

It seems that the analysis at the time - that it would trigger a spate of mergers and takeovers in the banking sector - is being proved spot on.

BBC: Banks braced for more mergers

In addition, Mr. Abdulmutallab's cash purchase of a round-trip ticket didn't trigger any secondary screening, calling into question the efficacy of the system that is supposed to spot passengers who are acting suspiciously and may be threats.

WSJ: The Middle Seat | How to Improve Travel in 2010