As for the problems of optimal design on mechanical products, it is quite difficult to make a correct decision in the stage of scheme design due to too many involved factors.

对于机械产品优化设计问题，由于涉及因素较多，在方案设计阶段很难作出正确决策。

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So it is necessary to study the optimization operation of hot oil pipeline after adding DRA, which can make optimal scheme and provide basis for scientific decision.

因此，有必要对热油管道中添加减阻剂的优化运行进行研究，制定最优运行方案，为科学决策提供依据。

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With fully consideration on the unit's secure and economical indices, the decision-making scheme achieves the optimal operation of pumping station as a whole.

这种决策方案充分考虑了机组的安全性、经济性指标，从总体上达到了泵站运行的最优化。

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