当前学科:船舶动力装置
  • 题目: 单选
    () are formed by abrasive particles entering the bearing and scoring the shaft.

      A . Grooves
      B . Recesses
      C . Ridges
      D . Ni

    答案: <查看本题扣1积分>

    查看答案

    答案不对?请尝试站内搜索