There are some problems in modelling karst water circulation using hydrological model as lack of information of groundwater distribution in karst system (black box or grey box).
由于岩溶地下水分布难以量测，岩溶水文系统多为黑箱或灰箱，采用岩溶水文模型量化其水循环过程常存在许多疑难问题。
Grey box model identification for railway cars system is simulated and tested in laboratory by grey box software tools, it is proved that the scheme is feasible and valid.
应用灰箱辨识软件对车辆系统的灰箱模型辨识进行了仿真研究和实验室试验验证，证明了所提出方案是可行和有效的。
C model was applied to build simulation stimulus and expected output responses, and reusable verification structure and verification method of Grey-box were also applied to this design.
通过C仿真模型来创建仿真激励和期望响应，采用了可重用的验证结构和灰盒的验证方法。
C model was applied to build simulation stimulus and expected output responses, and reusable verification structure and verification method of Grey-box were also applied to this design.
通过C仿真模型来创建仿真激励和期望响应，采用了可重用的验证结构和灰盒的验证方法。
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