基本释义:

主控电钟，母钟

网络释义

1)controlling electric clock,主控电钟，母钟

2)primary clock,母钟，主钟

3)controlling electric clock,主控电钟

4)controlled electric clock,子钟，受控电钟

5)mother clock,母钟

6)master and slave clock, primary and secondary clock,母钟和子钟