基本解释：准紧集
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This paper studies in some conditions, z ∈ (E) is a complete distance space, standard compact, and compact.本文研究了在某些条件下，（Ｅ）是完备的距离空间、准紧的、紧的。
In this paper we consider that any bounded solutions u(x,t)of(1)～(3)has a precompact range of u(x,t) which is proved.Ｄｉｅｕｄｏｎｎｅ在文［１］中证明了（１）～（３）存在唯一解，本文证明了（１）～（３）的任何有界解都有准紧值域。
This paper puts forward a method to convert ordinary schedule of successor activities into standard schedule of successor activities,and gives an applied example of this method.提出了一种将普通紧后工序表转化为标准紧后工序表的方法 ,列举了一个该方法的应用实
