The design calculation, parameter optimum and performance analysis about the new innovated combined lifter have been done systematically.
对新型组合式挖掘铲进行了系统的设计计算、参数优化和性能分析。
Based on the modern digital technology of fluid mechanics, the eight-parameter optimum axisymmetric bodies for minimum drag are obtained by using COMPLEX method.
本文利用现代流体力学计算技术，采用复合形法(COMPLEX)，对八维参量的回转体最小阻力外形进行优化设计。
The paper presents the application, bottom hole assembly and parameter optimum of steering drilling system in Gangshen well 24-26. Meanwhile, the applied effect is analysed.
文中详细介绍导向钻井系统在港深24 -26井的应用情况、钻具组合、参数优选，并进行效果分析。
The paper presents the application, bottom hole assembly and parameter optimum of steering drilling system in Gangshen well 24-26. Meanwhile, the applied effect is analysed.
文中详细介绍导向钻井系统在港深24 -26井的应用情况、钻具组合、参数优选，并进行效果分析。
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