With the continuous progress of transmission technique and the rapid development of data and Internet services, the application of Automatic Switch Optical Network (ASON) has been evolved widely.

随着传输技术的不断进步和数据及互联网业务的迅猛发展，智能光网络的应用越来越广泛。

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Were there no transformers to switch the voltage, long-distance transmission of electricity would be impossible?

要是没有变压器来调节电压，远距离输送电力是不可能的。

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The operations of current transmission switch used to realize threshold-controlling circuits are established.

建立了实现阈值控制电路的电流传输开关运算。

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Wall Street worries that ever more copper-wire customers will quit and switch to cellular, with its expensive transmission towers and subsidized handsets.

FORBES: Whitacre's Way

It had a four-speed transmission and fully working transfer case, so you could switch from two- to four-wheel drive.

FORBES: Parents: Buy Kids' Legos, But Throw Away The Instructions

Such a switch remains difficult so long as utilities retain an iron grip on the transmission lines in their geographic areas, and the utilities are wary of starting price wars with each other.

WSJ: Business Asia: Singing the Abe Electric