指示器的英文

流传上罕汽油机车即

故障指示器 [词典] [计] fault indicator; trouble indicator; [例句]短路及接地故障指示器（EKL-4）用于检测中压配电系统短路和接地故障的装置。Short-circuit and earth fault indicator ( EKL-4) is used to detect medium-voltage distribution system short-circuit and ground fault devices.

second hand

你好！The flow indicator