Flash photography is one of the trigger factors for epileptic seizures.

闪光灯是癫痫病发作的诱因之一。

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Spoil Dumping Sites for the formation of a slope, in a variety of trigger factors, may form a landslide or debris flow.

渣场弃渣堆积形成一个坡面，在各种触发因素下，将形成滑坡或泥石流灾害。

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Therefore it is significant to explore the trigger factors and the relevant mechanisms of tubulointerstitial fibrosis and seek the early reversible factor or treatment.

肾小管问质纤维化的因素和相关机制，寻求其早期可逆因子或防治措施对肾脏疾病转归有重要意义。

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However, studies are looking into environmental factors that may trigger autism in those who are genetically prone to the disorder.

CNN: Study: 1 in 110 U.S. children had autism in 2006

What are the factors or conditions that would trigger a move like that?

WHITEHOUSE: Press Briefing

Scientists say Type 1 diabetes is caused by a combination of genetic and environmental factors but they don't know what the trigger is.

WSJ: Wrong Call: The Trouble Diagnosing Diabetes