The paper has transverse check to CAPM by using data from Shenzhen's securities, studies relations between stock group and single stock and system risk, and analyzes single stock risk construction.
采用深圳证券市场交易数据对资本资产定价模型进行了横截面检验，研究了股票组合和单支股票收益率与系统风险的关系，并分析了个股风险构成。
Huck rivet transverse vibration test rig is designed and developed to adapt mass coercive spot-check of railway truck.
为应对铁路货车铆钉质量强制抽验的要求，设计研制出哈克铆钉横向振动试验台。
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