[机]?滚道中部
... 滚道接触直径 raceway contact diameter 滚道中部 middle raceway 滚动淬火 rolling quenching ...
滚道中位
By the 1990s, Raceway Park was no longer in the middle of nowhere.
WSJ: New Jersey's Noisiest Neighbor
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。