coal wharf短语¹⁴⁴⁹⁷²⁺² 基本例句 煤码头 港口 Combinatorial Methods of Simulation and Optimization can be used to research the transportation system in coal wharf with their merits both in simulation and in optimization. 模拟与优化组合方法能结合模拟和优化两种方法的长处，更好地研究具有随机因素影响的运输网络系统。 cnki