Combinatorial Methods of simulation and optimization can be used to research the transportation system in coalwharf 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。
2
This machine is mainly applicable to weave multi-layer true selvedge fabrics, especially to weave 4 layers grade 6-8 integral core for fire retardant conveyor used in the coal mine or at the wharf.