drill collar 中文意思是什麼

drill collar 解釋
防偏鉆桿
  • drill : n 1 【軍事】操練，演習；（嚴格而有系統的）盤練，訓練；〈英口〉教官。2 【機械工程】鋼鉆，鉆頭；鉆...
  • collar : n 1 衣領；硬領；項圈；護肩，（牲口的）軛。2 環狀物；【機械工程】端箍，軸環；【建築】柱環；系梁，...
  1. Rough and fine cutting, drilling and boring can be conducted for petroleum drill devices such as drill collar, integral heavy wall drill pipe, centralizer as well as other large - sized and super long axis parts with diameter less than 1600mm and length less than 18000mm

    在此可以對鉆鋌、加重鉆桿、扶正器等石油鉆具和其他直徑小於1600毫米、長度小於18000毫米的大型、超長軸類零件進行粗、精車削和鉆、鏜加工。
  2. Practice for selection and use of drill pipe and drill collar

    鉆桿和鉆鋌選用作法
  3. We need a short drill collar

    需要一根短鉆鋌
  4. The drill collar is necessary of important drill tool for oil exploration. is main part that make up drill - stem

    鉆鋌是石油鉆采必須的重要鉆具，是構成鉆柱的重要部分。
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