utility

the service (electric power or water or transportation) provided by a public utility

公用事业提供的服务（电力、水或交通）

the cost of utilities nr decreases

公用事业的费用从不降低

all the utilities were lost after the hurricane

飓风过后，所有的公用设施都失去了

a facility composed of one or more pieces of equipment connected to or part of a structure and designed to provide a service such as heat or electricity or water or sewage disposal

由一个或多个连接到一个结构或其一部分的设备组成的设施，用于提供诸如热、电、水或污水处理等服务

the price of the house included all utilities

房子的价格包括所有的水电费

the quality of being of practical use

实用性

usefulness

(comr science) a program designed for general support of the processes of a comr

（计算机科学）为计算机处理过程提供一般支持而设计的程序

a comr system provides utility programs to perform the tasks needed by most users

计算机系统提供实用程序来执行大多数用户所需的任务

utility program

service program

a company that performs a public service

提供公共服务的公司

subject to government regulation

受

public utility

public utility company

public-service corporation

(economics) a measure that is to be maximized in any situation involving choice

（经济学）在任何涉及选择的情况下都要较大化的度量