Surface defects in ceramic bearing balls may significantly affect ball strength and reduce rolling contact fatigue lifetime.

 
  • 陶瓷軸承球的表面缺陷會(huì )嚴重降低球的強度和滾動(dòng)接觸疲勞壽命。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan