代理人有以下几个特点。
近期公开发表的《〈自然辩证法概论（教学大纲）〉征求意见稿》有以下几个特点：（1）维持了“三大块”的理论框架；
The draft of'An introduction to dialectics (teaching programme)'"published recently bears characteristics as follows: (1) it maintains the theory frame of "three main parts";
不同类型的水泵，其故障的表现形式不一样，但概括起来，有以下几个共同特点。
Different types of pumps, their fault not the same as the manifestations, but can be summarized as the following common characteristics.
不同类型的水泵，其故障的表现形式不一样，但概括起来，有以下几个共同特点。
Different types of pumps, their fault not the same as the manifestations, but can be summarized as the following common characteristics.
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