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备用井 meaning in English

emergency shaft
replacement well
reserve well
spare well
standing well

Related Words

  1. 备用母线
  2. 备用定位
  3. 应急备用
  4. 备用锚
  5. 备用车
  6. 备用位
  7. 备用鼓风机
  8. 备用压缩机
  9. 备用处理机
  10. 备用寄存器
  11. 备用紧急通信
  12. 备用进气道
  13. 备用静压源
  14. 备用镜头
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