本文通过可控性分析和可观察性分析指出，现有的座舱压力控制系统不是状态完全可控制的，因而不是好的方法。

This paper shows by means of the analysis for controllability and observability that the present cabin pressure control system is not controllable for all states, so it is not a good method.

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本文通过可控性分析和可观察性分析指出，现有的舱压控制系统不是状态完全可控制的，因而不是好的方法。

This paper shows by means of the analysis of controllability and observability that the present cabin pressure control system is not controllable for all. states, so it is not a good method.

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可观察性是指测试系统观察iut的输出、判断输入与输出对应关系的能力。

Observability is the capability of the test system to observe the output of the IUT and to determine which input triggers the particular output.

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