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关井开关 meaning in English

shut-in switch

Related Words

  1. 关
  2. 关关雎鸠
  3. 关断开关
  4. 关关半岛
  5. 关井井底压力
  6. 关井井口压力
  7. 关井口套管闸门挤压
  8. 关井期
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