列车运行控制系统是保障高速铁路行车安全、提高运输效率的核心，它对保证行车安全、提高运输效率具有极其重要的作用。
Train control system is the key system, which is extremely important for traffic safety guarantee of the railway and improving the efficiency of the railway transport.
测试是CTCS - 3级列车控制系统投入运营前的一个重要步骤，对其各方面性能进行测试，是保证列车行车安全，提高运输效率的重要手段。
Testing is an important process before the CTCS-3 being put into practice and is an essential way to ensure the safe operations of the train and improve the efficiency of the capacity of transporting.
测试是CTCS - 3级列车控制系统投入运营前的一个重要步骤，对其各方面性能进行测试，是保证列车行车安全，提高运输效率的重要手段。
Testing is an important process before the CTCS-3 being put into practice and is an essential way to ensure the safe operations of the train and improve the efficiency of the capacity of transporting.
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