quality classification of soil samples 土试样质量等级
soil quality classification 土壤质量分类
Quality classification of hot press 热压机
air quality classification 空气质量分级
Rock mass quality classification 岩体质量分级
Total Score Quality Classification 总分数品质等级
rock quality classification 岩石质量分类法
The studies of the evaluation of the types of urban land quality classification are so far very few.
对城市土地质量分类型评价，迄今研究甚少。
The invention provides a method for service or use according to assigned service quality classification.
本发明提供一种按照规定的服务质量类别提供服务或应用的方法。
Considering the features of acetone refining process, a strategy of neural network based data mining for product quality classification is proposed.
针对丙酮精制过程的特点，提出一种基于神经网络的丙酮产品质量分类挖掘方法。
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