The method has the character of fast, stable, simple structure and high performance cost ratio, etc.
该方法具有快速稳定、结构简单、性能价格比较高等特点。
The structure character of hyperbranched polymer, its unique solution and bulk property, and the main affect factors on the performance, were introduced.
介绍了超支化聚合物结构特征，独特的溶液和本体性能，以及影响这些性能的主要因素。
The paper introduces the design thought, main structure, performance character, applying range and control implement of cutting machine for intersecting curve of major diameter steel pipes.
介绍了大直径钢管相贯线数控切割机的设计思路、主要结构、性能特点、适用范围和控制实现。
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