求翻译：起重机运行的安全装置；如：起重限制器、行程限制器、过卷扬限制器、电气防护性接零装置、端部止挡、缓冲器、联锁装置、夹轨钳、信号装置等。是什么意思？

Crane safety devices; such as: lifting limiter, travel limiter, over hoisting limiter, then zero electrical protective devices, end stopper, buffer, interlock devices, clip-rail clamp, signal devices.

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Hoist crane movement safety device; For example: Lifts heavy objects the killer, the arresting gear, has hoisted the killer, the electrical protection meets the null device, the nose stops keeps off, the buffer, the interlocking device, the rail tongs, the signaller and so on.

Crane safety devices; such as hoisting limiter, stroke, hoisting limiter, electrical protective zeroing device, end stop, bumpers, interlocks, rail clamp pliers, signal installations.

Crane safety devices; such as hoisting limiter, stroke, hoisting limiter, electrical protective zeroing device, end stop, bumpers, interlocks, rail clamp pliers, signal installations.