The sand stratum in old river bed is important factor affecting stability of dam.
古河道砂层的存在，是影响围坝稳定的主要环境因素。
The size of bed materials and fluidization velocity are important influence factor.
床料粒径和流化数作为流化床运行的重要参数对热解也有明显的影响。
The size of bed materials and fluidization velocity are important influence factor.
床料粒径和流化数作为流化床运行的重要参数对热解也有明显的影响。
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