dead man's handle

复数形式

dead man's handles

死人开关, 安全装置

a safety device on machinery that stops it from operating if the operator becomes incapacitated or loses control

A dead man's handle is a safety feature on trains that ensures the train stops if the driver becomes unable to control the train or loses awareness. It is a lever or button that the driver must continuously hold or press while operating the train. If the driver lets go or fails to press it, the train will automatically apply the brakes and stop. This system helps prevent accidents caused by a driver becoming unresponsive or distracted. It is commonly found on older trains or in certain safety-critical situations.

The train had a dead man's handle, which automatically applied the brakes when the driver let go of the controls.
火车有一个死人手柄，当司机松开控制装置时，它会自动施加刹车。
Operating the lawn mower with a dead man's handle ensures that the blades stop spinning if the operator falls.
使用安全手柄操作割草机可确保如果操作员跌倒，刀片会停止旋转。
The crane's dead man's handle prevented any accidents by halting its movements when the operator released the lever.
起重机的安全手柄通过操作员松开操纵杆时停止其运动来防止任何事故发生。
A dead man's handle on a boat's engine prevents it from running if the captain is unable to maintain control.
船发动机上的死人开关可防止在船长无法保持控制时发动机运行。
The factory's conveyor belt is equipped with a dead man's handle, ensuring worker safety by stopping the belt if someone falls onto the controls.
工厂的传送带配备了紧急停止装置，如果有人倒在控制装置上，传送带就会停止，从而确保工人的安全。