wrb
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World reference base for soil resources ( wrb ): establishment and development
世界土壤资源参比基础(WRB):建立和发展
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Design and Analysis of Electric-hydraulic Servo System for the Hot Rolling Mill 's WRB
热轧精轧机弯辊电液伺服控制系统的设计分析
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Company : W. R. Berkley ( WRB , Fortune 500 )
任职公司:W.R.Berkley保险公司(《财富》500强)
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Drive Control System of WRB and FRS for New High Speed Roll Mill in Xianggang Application Research on Optimized Wire Rod RSM Rolling Parameters by DOE
湘钢新高线精轧和减定径机组传动控制系统运用试验设计优化高线减定径机组轧制参数的应用研究
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The applications of profile and flatness control technologies , such as WRB , CVC , and dynamic work roll cooling , of Steckel mill of Jiuquan Iron and Steel Co.
主要介绍了酒泉钢铁集团有限公司炉卷轧机板形控制技术&工作辊弯辊技术(WRB)、连续可变凸度控制技术(CVC)、动态工作辊冷却技术在调试和生产中的应用及其效果。
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At present , the central soil classifications in international level are soil taxonomy ( ST ) and world soil resources reference base ( WRB ), and in national level are Soil Generation Classification ( CSGC ) and Chinese Soil Taxonomy ( CST ) .
目前国际上土壤分类主要有美国土壤系统分类(ST)和世界土壤资源参比基础(WRB);国内土壤分类主要有土壤发生分类(CSGC)和土壤系统分类(CST)。