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The structure and composition of the copolymer were characterized by IR, NMR and elementary analysis.
用红外光谱、核磁共振、元素分析测定了共聚物的结构及组成。
General bridge crane lifting trolley generally, Bridges run organization, structure and composition of metal bridge.
普通桥式起重机一般由起重小车、架桥运行机构、桥架金属结构组成。
Integrated framework developers have the advantage of knowing about the structure and composition of a framework's elements.
集成框架的开发人员的优势是了解框架元素的结构和组合。
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