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一项主要信号设备的诞生,都是由铁道部组织相关领域的专家学者进行系统研究设计,经过多方的论证和试验,选择试点进行全面的现场测试,然后扩大现场试验范围,最后经铁道部鉴定、批准、定型,在全路推广使用。因此定型设备诞生时,都能符合故障导向安全的要求,例外极少。受现场客观条件和铁路维护方式的影响,定型设备也可能会产生一些惯性故障,或出现某些不理想的特
The birth of a major signal equipment is systematically researched and designed by experts and scholars in related fields organized by the Ministry of Railways. After various tests and demonstrations, it has chosen to conduct a full-scale field test and then expand the scope of the field test. At last, it was identified by the Ministry of Railways , Approved, stereotypes, promote the use of the whole road. Therefore, the birth of stereotypes, can meet the requirements of fault-oriented safety, with very few exceptions. Subject to the objective conditions of the site and the way the railway is maintained, the styling equipment may also give rise to some inertial failure or some undesirable characteristics