为此，通过对四川输气站场风险评价方法的研究，将风险管理理论引入输气站场的生产管理中。
With study of risk evaluation methods for the gas transmission stations in Sichuan, the risk management theory is introduced into the operating management of gas transmission stations.
论文旨在混凝土公路箱梁桥温度场的长期观测数据基础上深入研究并完善公路桥梁混凝土箱梁温度场的理论与计算方法。
Therefore, to research and perfect the theory study and calculating method of temperature field in concrete box-girder basing on long-term observation data is the purpose of this dissertation.
本文介绍了超音速引射喷管的流场和性能的理论计算方法。
This paper presents an analytical method for calculating the flow field and performance of supersonic ejector nozzle.
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