At present, many studies aimed at Wuhan urban land only settled in land quality appraise, land classify, land use degree, land use structure evolvement and dynamic inspection, and so on.
目前针对武汉市城市土地的研究仅限于土地质量评价、土地分等定级、土地利用程度、土地利用结构演变及其动态监测层面。
It is also possible to classify composites by their structure.
根据结构来对合成物进行分类也是可行的。
The paper mainly deals with the phosphatides structure, classify, function and separating and purifying method, as well as its application.
介绍了磷脂的结构、分类、功能、国内外磷脂的提纯分析方法，以及磷脂在各个领域中的应用。
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