指示器，记录器监控发动机、熔炉、电网、水库或其它系统运作状况的仪器；指示板或。

An instrument used to monitor the operation or condition of an engine, a furnace, an electrical network, a reservoir, or another physical system; a meter or gauge.

youdao

指示器，记录器监控发动机、熔炉、电网、水库或其它系统运作状况的仪器；指示板或。

An instrument used to monitor the operation or condition of an engine, a furnace, an electrical network, a reservoir, or another physical system; a meter or gauge.

youdao