词汇	差速辊
释义	差速辊 differential speed roll
随便看	magnetic-valve magnetic valve controllable reactor magnetic valve type surge arrseter magnetic vane ammeter magnetic vane instrument magnetic-vane instrument magnetic vane meter magnetic-vane meter magnetic variability magnetic variable magnetic, variable magnetic variable reluctance type pick u magnetic variable star magnetic variation magnetic variation chart magnetic variation curves magnetic variations magnetic variationvar magnetic variometer magnetic v block v magnetic V block V magnetic vector magnetic vector poeential magnetic vector potential magnetic vector potential method