A PIONEER DESIGN - Mechanical locking device free of power supply characterized by unidirectional and self-locking function is adopted for the first time based on deep research as well as considerable trial on the locking device of existing door system.3.
2.在对现有门系统锁闭装置深入研究和大量先行性试验的基础上,首次独创推出了单向自锁式无源机械锁闭装置。
参考来源 - 城市轨道车辆自动塞拉门系统研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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