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单词 crown block
释义
crown block
  • 简明释义
  • 顶轮支架:连接在油井井架柱顶部的木材或钢制滑轮支架。
  • 网络释义
  • 1

    [机]?天车

    ... 绞车电机DC moter, drawworks 天车crown block 卧式供油罐supplying oil tank ...

  • 2

    ?起重定滑轮

    ... crowbar铁撬棍撬杆 crown block起重定滑轮 crown circle外端齿顶圆 ...

  • 3

    ?拱顶石

    ... cover block 盖面块(混凝土的),垫块,填块 crown block 拱顶石;起重机顶部滑车组 cushion block 垫块 ...

短语
  • 双语例句
  • 1
    To replace the drilling line wrapped around the crown block and traveling block.
    为更换缠绕在天车和游动滑车周围的钻井钢丝绳用。
  • 2
    The drilling line is reeled over the crown block and traveling block to gain mechanical advantage in a "block and tackle" or "pulley" fashion.
    钻井用钢丝绳通过天车和游动滑车以滑轮组的形式获得机械上效益。
  • 3
    The text detailedly introduced crown block, running system, availability work period of bridge girder erection equipment and improve case for precast beams install.
    详细介绍了对双导梁式架桥机天车、行走系统、有效工作长度及预制梁安装就位的改进情况。
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更新时间:2025/3/17 14:18:17