The happening of debris flow is a complicated problem, and it is the outcome of polysynthesism coaction, this brought difficulty to analytical prediction of development trend of debris flow.
摘要泥石流
发生与否
一个极其复杂问题，
由多种因
共同作用
，这也给泥石流活动发展趋势分析预测带来了困难。
复合;句子中数语合成一语The happening of debris flow is a complicated problem, and it is the outcome of polysynthesism coaction, this brought difficulty to analytical prediction of development trend of debris flow.
摘要泥石流发生与否一个极其复杂问题，由多种因共同作用，这也给泥石流活动发展趋势分析预测带来了困难。
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