切换信号 meaning in Chinese

motor cue

Iss insertion test signal
插入切换信号
The types of uncertainties that may arise in the system often depend on the type of signal being switched
系统中不确定性的类型往往随被切换信号的类型而变化。
Inductive electric alarm contacts have an almost unlimited service life , as the signal is switched without physical contact
感应电警报接点有几乎无限的使用寿命，因为它不用物理接点切换信号。