Haskind discussed the non-steady motions of small curved planing plate by using the theory of complex functions, and obtained the general expression of hydrodynamic forces.
哈斯·金德用复变函数理论讨论了微弯滑行板的非定常运动，获得了计算水动力的一般公式。
Problems of the refinery general scheme planing, its energy integrated optimization and the renovation of existing refineries etc. were analyzed.
分析了炼油厂总流程规划中能量综合优化。总流程规划优化及老厂改造等问题。
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