Structure testing in low magnificution, chemical composition analysis and microstructure examination were used to analyze the edge cracking of strip steel coil.
采用低倍组织试验、化学成分分析及金相检验等方法，对出现边裂的带钢卷进行了解剖分析。
The methods of extraction and purification, test, chemical composition, structure analysis of tea polysaccharide are summarized.
综述了茶多糖的提取纯化方法、纯度及测定方法、化学组成、结构分析方法。
RESULTS Chemical structure of the product was confirmed by melting point and element analysis.
结果所得产物经熔点测定、元素分析确证其结构。
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