A Fuxing bullet train left Mudanjiang Railway Station in Heilongjiang province early on Sunday morning for a full-line test on the high-speed railway linking Mudanjiang and Jiamusi in the province.

8月15日上午，复兴号高寒动车组从黑龙江省牡丹江站缓缓驶出，参与牡佳高铁(牡丹江至佳木斯)联调联试。

It was the first time a Fuxing bullet train has run on China's easternmost high-speed line, which is in an extremely cold region.

这也是复兴号高寒动车组首次在中国最东端高寒高铁线路试跑。

Since June 10, different types of bullet trains have been put into use in test runs to ensure the line can operate safely.

牡佳高铁联调联试自6月10日启动以来，分别进行了不同动车组的试验，以确保线路能够安全运行。

Dynamic detection and debugging of rail track, communication, signal, power supply, disaster monitoring and other systems have been completed and the whole system has been optimized.

经过轨道、通信、信号系统、电力供应、灾害监测等系统的动态检测和调试，使各系统和整体系统功能得到了优化。

Construction started in November 2016.

牡佳高铁施工于2016年11月开始。

The 371-kilometer line, designed for trains running at up to 250 kilometers per hour, will cut travel time between Mudanjiang and Jiamusi from seven to two hours.

线路全长371公里，设计时速250公里，将把牡丹江和佳木斯之间的通行时间从7小时缩短到2小时。