utility

During some lightning storms, a bolt can send a 500-volt spike through the nearest utility pole.

在某些雷雨时，一道闪电能通过最近的电报线杆发送500瓦特的尖峰电压。

If utility bills are high, get the whole family involved in the conservation plan.

如果水电费很高，就让全家人都参与到能源节约计划中来吧。

The most advanced insulation follows the law of increasing returns: if you add enough, you can scale down or even eliminate heating and air-conditioning equipment, lowering costs even before you start saving on utility bills.

最先进的保温材料遵循收益递增定律：如果你增加足够多的材料，你就可以减少甚至取消供暖和空调设备，甚至在你开始节省电费之前就降低了成本。

Call the utility if you have any problem.

如果有任何问题请致电电力公司。

I designed a shareware utility.

我设计了一个共享实用程序。

I think this is a plan without much practical utility.

我认为这是一个没有多少实际效用的计划。

In most sectors of the economy, it is the seller who attempts to attract a potential buyer with various inducements of price, quality, and utility.

在经济的大多数行业中，是卖方试图用价格、质量和效用等各种诱惑来吸引潜在的买家。