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SS8型电力机车上,TJY3-4.5/11型风压继电器的作用是当停车制动风管风压低于()时,继电器触头闭合,司机台上“停车制动”信号灯亮.提醒司机应采取措施。
- A、294kPa
- B、420kPa
- C、450kPa
- D、600kPa
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