The space elevator is exactly what its name says it is: a long cable anchored at one end to the ground and at the other end high in space, protruding from the planet like a spoke in a rotating orange.

顾名思义，太空升降梯是一根很长的电缆固定在地面的一端，另一端高高地延伸到太空中，就像一条从旋转的橙子中伸出的辐条那样伸出地球。

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An unbalanced line is generally a single-conductor shielded cable with the center conductor carrying the signal and the shield at ground potential.

对于非平衡式信号线来说，就是一根被屏蔽了的信号线，这个中心信号线传输信号，且相对于地电势。

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The connecting cable from the ground rod to the SG bus bars in PDP cabinet is equal to100 Square millimeters or larger ?

安全地接地极与PDP中安全地汇流母线的连接电缆大于等于100平方毫米?。

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At 400 kilovolts, a standard value for long-distance transmission, an alternating current 30 metres (100 feet) from the ground has a fortieth of the loss of a similar cable at ground level.

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Or perhaps take it a step further and drive the online service, a threat to the traditional cable business, right into the ground?

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But you are also getting a call option on the possibility that Viacom will sell a lot of premium services to its cable subscribers, using fiber-optic cable it has already laid in the ground.

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