Time precision of calculation results of unsteady flow field was ensured by using combined method of dual-time step and preconditioning.
采用双时间步和预处理相结合的方法计算非稳态流场，保证了采用预处理方法后计算结果的时间精确性。
A high activity Cu base catalyst has been prepared for methanol synthesis by one step parallel flow coprecipitating method.
用一步并流共沉淀法制备了一种高活性合成甲醇铜基催化剂。
A dynamic simulation model for non-homogeneous flow in wet steam turbine was developed and was corrected by a time step method, and then could be applied to dynamic simulation.
建立了透平湿蒸汽非平衡流动动态仿真模型，并进行了时间步长修正，模型可以用于蒸汽轮机的动态仿真计算。
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