从渗流的特点出发，对稳定井流与非稳定井流似稳定阶段中各要素的特征进行了对比，找出相似之处。
The similar parts had been found through the comparing of the characteristic of each factors in the steady well flow.
三者虽各具其临床和脑电图特点，但也有共同的特征：（1） 倾向于在特定年龄阶段发病；
Though different clinically and electroencephalogramically, they have the common characteristics: (1) Inclining to attack in a certain age period;
滑坡灾害链式阶段特征具有直观、形象、特征鲜明的特点，也是把握链式演变规律的关键。
The slope disaster chain-stage characteristics are intuitionistic, visual and vivid, and it is the key of understanding the chain evolvement rules.
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