从而为建立及求解电力网的线性规划模型提供了数学依据.

So it provides mathematical basis for establishing and solving power network linear planning model.

由于电力网故障，城市经历了一次停电。

The city experienced a blackout due to a failure in the electricity grid.

它是以这种电压馈入电力网。

It is fed into the grid at this voltage.

它是以这种电压馈入电力网。

It is fed into the grid at this voltage .

电力的需求似乎难以满足，所以他的梦想是，不用电线来传送电力及信号，来打败刚萌芽的地面电力网。

The demand for electricity appeared to be insatiable, so he dreamed of trumping the burgeoning landline networks by distributing both power and messages without wires.

原因是主要的电力网和核电建设正在加倍努力扩大。

The reason is the main power grids and the construction of nuclear power is redoubling its efforts to expand.

我们的构想是超级电力网将可和目前的电力网并存,逐步演进, 提高其容量和可靠程度.

We envision the SuperGrid evolving gradually alongside the current grid, strengthening its capacity and reliability.

通过对城市电力网中用电量的时间序列分析, 建立其线性模型.

After analyzing the model of time sequence of electrical power consumption, model of it is built.

举例来说，如果有一条电线垂挂到树上，断路器会开启，将这条电线与电力网隔离，流经这条电线的电力会立刻转移到其他线路。

When a line sags into a tree, for example, circuit breakers open to isolate the line from the grid, and the power that was flowing on the wire almost instantaneously shifts to other lines.

高空核电磁脉冲（HEMP）能使通信系统失效，甚至能使距爆炸地点十分遥远的电力网失效。

HEMP can disable communications systems and even power grids at enormous distances from the burst.