子钟 meaning in English

secondary clock; slave clock

Time service ; concepts , terms and structure of secondary clocks
报时业务.子钟的概念术语与结构
Brackets for secondary clocks and single clocks ; connecting dimensions
子钟和单钟用支架.连接尺寸
Two - pole plug for polarized secondary clocks ; connecting dimensions
固定极性的子钟用两极插头.连接尺寸
Horology . time transmission from masterclock to secondary clocks by coded signals on double - wound . requirements
钟表业.在双绕线上用编码信号从母钟到子钟的时间传送.要求