单词	distress calls
释义	同distress call
随便看	open-loop robot open-loop series circuit open loop series street lighting system open loop stabilization open-loop stepped motor open loop system open-loop system open-loop systems open-loop test open loop tracking open-loop tracking open-loop transducing open-loop transducing (deflection method) open-loop transfer function open loop voltage gain open-loop zero openly open machine open magnetic circuit open manifold open manometer open map open mapping open mapping ; interior mapping open mapping theorem