A big hole in the cloud computing movement so far is that most of the solutions out there, even the database solutions, are proprietary.
目前为止摆在云计算运动面前的一大障碍就是，现有的解决方案，甚至是数据库解决方案，都是私有的。
Three dimensional finite element computing model is established and the effect of stemming length to deep hole bench blasting is studied by three dimensional finite element method.
采用三维有限元数值分析法，通过建立三维有限元计算模型，分析堵塞长度对堵塞区有效应力场的影响。
This paper investigates on the single hole anchorage, set up a computing technology to the reliability of a pre-stressing single hole anchorage system.
本文以预应力单孔锚具为研究对象，建立了预应力单孔锚具锚固体系可靠性的计算方法。
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