conductors

柯林斯词典

1. N-COUNT A conductor is a person who stands in front of an orchestra or choir and directs its performance. (交响乐、合唱的) 指挥
2. N-COUNT On a train, a conductor is a person whose job is to travel on the train in order to help passengers and check tickets. 列车员[美国英语]
3. N-COUNT On a tram or a bus, the conductor is the person whose job is to sell tickets to the passengers. (公共汽车等的) 售票员
4. N-COUNT A conductor is a substance that heat or electricity can pass through or along. (热、电的) 导体
Graphite is a highly efficient conductor of electricity. 石墨是一种高效的电导体。
5. →see also semiconductor