选择交流电作为工业标准的原因很简单，在早期供电距离很短的电网里，交流电的损耗比直流电小。

The reason was that over the short distances spanned by early power grids, AC transmission suffers lower losses than DC. It thus became the industry standard.

youdao

目前，40%左右的消费者可选择供电公司，而这在2002年是很罕见的。

Now, around 40 percent of consumers can choose their supplier – something that was scarcely available in 2002.

youdao

目前，40%左右的消费者可选择供电公司，而这在2002年是很罕见的。

Now, around 40 percent of consumers can choose their supplier — something that was scarcely available in 2002.

youdao