利用多元分析法对49个二棱型啤酒大麦育种材料的7个主要性状指标进行了主成份分析与聚类分析。
By means of multielement analysis, 7 character indexes of 49 breeding material had been made by a main composition and cluster analysis in malting barley.
用主成份分析研究了影响北京地区土壤元素背景值的主要因素。
The main component analysis has been used to study the principal factors which affect soil background contents of a number of metals in Beijing area.
研究蓝钨氢还原工艺并分析了蓝钨在氢气还原过程中主要相成份的变化。
In this article, the process and main phase composition are studied during the deoxidization of blue tungsten oxide in hydrogen.
探讨了以玉米为原料酿制麸子酒的生产工艺，并对酒的主要营养成份进行了分析。
The production process of sweet yellow corn wine was introduced , and the main nutrient substance of the wine was analysed.
为了降低油烟对环境的污染，分析了油烟中的主要污染物成份及油烟对人体健康的几种危害。
Major pollutant composition of cooking fume as well as some harms of cooking fume to human health was analyzed in order to reduce the cooking fume pollution.
多元统计分析的主成份分析方法是对多维矢量数据提取主要特征分量，以此达到压缩矢量维数的目的。
The principal component analysis in multivariate statistic analysis is a method of compressing the dimension of vector data by extracting principal typical components from sample data set.
为了降低油烟对环境的污染，分析了油烟中的主要污染物成份及油烟对人体健康的几种危害。
In order to reduce the cooking fume pollution on environment, the main pollution compositions of cooking fume were analyzed, and some harms of cooking fume to human were discussed.
气相色谱-质谱法分析表明，挥发性成份主要含40种化合物，对其中32种成分进行了鉴定，占整个挥发性成分含量的91.48％。
The analysis demonstrated that 40 main components were revealed with GC-MS and 32 of which were identified, up to 91.48 percent.
并结合锌铝合金的成份和组织结构特点，分析了具有良好耐磨性的主要原因。
And then according to the constituents and construction morphology, the main reasons why Zn-Al alloy has good wear property are analyzed.
通过金相分析、微区成份分析、宏观和微观断口分析，主要研究钎焊层和焊鏠区的微观结构及其对复合钢管工艺性能和使用性能的影响。
A study was carried out on the microstructure of interface and welding seam in dual-metal clad steel pipe. And its inferences on technological and service properties were studied.
饲料安全质量检测室主要开展饲料常规成份分析及其有害物质和违禁药物的检测工作；
Feed Safety and Quality Control Department is focused on feed proximate analysis and harmful materials and illicit drugs detection.
饲料安全质量检测室主要开展饲料常规成份分析及其有害物质和违禁药物的检测工作；
Feed Safety and Quality Control Department is focused on feed proximate analysis and harmful materials and illicit drugs detection.
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