This paper researches the planning and decision making problem of petroleum mechanical multiproduct enterprises, and establishes the corresponding system model by using systematic dynamic principle.
本文研究石油机械企业多产品生产的规划决策问题，运用系统动力学的原理建立了相应的系统模型。
Taking Xuechun mine for instance, KHT cushioning damping synchronous decking plate swing deck used in the mine is analyzed, and establishes mechanical model of bearing.
以薛村矿为实例，分析了KHT型缓冲阻尼同步摇台应用于该矿副井的情况，并且建立了托爪承接力学模型。
To solve the problem, this paper establishes a mechanical model of casing bend to explain the relative slipping and casing bend mechanism for some layer segments.
为解决产层套管的弯曲问题，通过建立压实、出砂引起的弯曲套管的力学模型，来解释部分层段产生相对滑动以及弯曲的机理。
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