Enhanced impact analysis within database applications with the ability to drill down into the SQL execution for "where used" analysis.
能够下钻到SQL执行以对“使用的位置”进行分析，增强了数据库应用程序内部的影响分析。
The relation between amplitude and vibration drilling mechanism and the impact of amplitude upon the life of drill with vibration drilling are described.
论述了振幅与振动钻削机理之间的关系以及对振动钻削钻头寿命的影响。
The effect of different steelmaking processes on mechanical properties of steel, especially on impact toughness of steel for drill color has been studied.
研究了冶炼工艺对钢力学性能的影响，特别是对钻铤用钢冲击性能的影响。
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