step speed change

英 [step spiːd tʃeɪndʒ] 美 [step spiːd tʃeɪndʒ]

网络  有[无]级变速; 有级变速

化学



双语例句

  1. The first step is to change cutting speed according to the thickness of work piece, which means to change the absorbed heat of unit.
    一是根据工件厚度的变化来调整等离子体弧切割速度,即改变单位体积上工件所吸收的功率。