| 释义 |
DEFINITIVE EXAMPLES 权威例句〔pantograph〕A similarly jointed framework, such as a power-collecting trolley on an electric locomotive or an extensible telephone arm.动臂装置：同样构造的有活节的结构，如电力火车上的电力机车或可伸性电话臂美国传统〔tie line〕A connection between systems, such as electrical power or communications systems.连接线：如电力系统或通信系统间的连接美国传统〔utility〕A commodity or service, such as electricity, water, or public transportation, that is provided by a public utility.公用事业：由公用事业公司提供的商品或服务，如电力，水和公共交通美国传统 |