As the extensive utility of Electro-hydraulic servo control system in spaceflight, national defence and every department of national economy, China Academy Railway Sciences introduced the muti-node loading test system from MTS company. 由于电液伺服控制系统在航天、国防以及国民经济的各个部门有广泛的应用,铁道科学研究院于1993年引入美国MTS公司的多点加载试验系统。