selsyn (-type) roll-opening indicator

• 自整角机式轧辊开度指示器

selsyn (-type) roll-opening indicator的英文翻译是什么意思，词典释义与在线翻译：

英英释义

名词 selsyn:

1. a system consisting of a generator and a motor so connected that the motor will assume the same relative position as the generator; the generator and the motor are synchronized