“有或无继电器”是什么意思谢谢Yingshuntong的回答，你的答案提醒了我，这是我找到的英文定义ALL-or-nothingrelayAnelectricalrelaywhichisintendedtobeenergizedbyaquantitywhosevalueiseitherhigherthan

Question

“有或无继电器”是什么意思
谢谢 Yingshuntong 的回答，你的答案提醒了我，
这是我找到的英文定义
ALL-or-nothing relay
An electrical relay which is intended to be energized by a quantity whose value is either higher than that at which it picks up or lower than that at which it drops outs.
真是奇怪，这么一个到处使用的术语，居然没有解释，连国标中也没有

Answer 1

有或无继电器all-or-nothing relay
预定由某一激励量激励的→种电气继电器，该激励量值若不是在其工作值范围内就是实际上为
零。