当前学科:船舶动力装置
  • 题目: 单选
    Each journal and pin should be examined for () and grooving.

      A . bridges
      B . recesses
      C . rears
      D . ridging

    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