Since all of this was included in the black box designated aircraft, the model could not speak of anything inside it at this level.

由于所有这些都被包括在黑盒指定的航行器中，在这个层级上该模型不需要指明任何内部事物。

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The idea of using of model programs and state space exploration is a natural extension of finite state machine based techniques that fits well with black-box testing of software.

使用模型编程与状态间隔探测的思想对于以软件黑盒测试技术为基础的有限状态机是一种自然的扩充。

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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。

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