converter
/kənˈvɜːtə(r)/(亦作 convertor)
noun
1- a person or thing that converts something使转变的人（或物）：
the would-be converter of a building to domestic use.
想把大楼改成民宅的人。
1.1
- a device for altering the nature of an electric current or signal, especially from AC to DC or vice versa, or from analogue to digital or vice versa变流器, 整流器, 变频器; 转换器
1.2
- a retort used in steel-making转炉。
1.3
- short for CATALYTIC CONVERTER.CATALYTIC CONVERTER的简称。
1.4
- Computing a program that converts data from one format to another【计算机】转换程序。
1.5
- a camera lens which changes the focal length of another lens by a set amount变焦镜：
a camera fitted with a x2 converter
安装x2变焦镜的照相机。