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устройство контроля бдительности машиниста (A dead-man's vigilance device (also called the Driver Vigilance Device or DVD for short) is a railroad safety device that operates in the case of incapacitation of the engineer. It is a hybrid between a dead-man's switch and a vigilance control.  wikipedia.org andrew_egroups); УКБМ (устройство контроля бдительности машиниста andrew_egroups) | |||