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2016年7月15日11点20分,中国自行设计研制、全面拥有自主知识产权的标准动车组CRH-0207与CRH-0503在郑徐高铁进行时速420 km的高速重联和交会试验,整个交会过程不到2 s。这是世界上首次利用拟运营动车组进行试验。由中车戚墅堰机车车辆工艺研究所有限公司(以下简称戚墅堰所)自主研制的齿轮箱驱动装置、中间车钩、踏面清扫器和抗蛇行减振器在试验的中国标准动车组上装载,运行状态良好,经受住了“大考”。
At 11:20 on July 15, 2016, CRH-0207 and CRH-0503, the standard EMUs with independent intellectual property rights, were independently designed and developed by China to carry out high-speed reconnection and rendezvous tests at a speed of 420 km per hour on Zheng-Xu High-speed Rail. The process is less than 2 s. This is the first time in the world that a trial operation of a unit to be operated is conducted. The self-developed gearbox drive device, middle coupler, tread cleaner and anti-snake shock absorber were loaded on the tested Chinese standard EMU and operated in good condition by the Qishuyan Locomotive and Rolling Stock Technology Research Institute Co., Ltd. (hereinafter referred to as Qishuyan) , Withstood the “exam ”.