聚乙烯因其良好的绝缘性能和机械性能，广泛应用于电力电缆及电气设备绝缘领域。

Polyethylene has been widely used in power cables and electrical equipments because of its excellent insulating and mechanical properties.

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因为这种扁平的配置，施加到电缆上的机械载荷分散在其总宽度上。

With this flat configuration, the mechanical load applied to the cable is distributed over the total width of the cable.

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哪根电缆是电梯机械锁的？

Now which cable controls the elevator's mechanical lock?

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