In addition, anticipating market developments, Huisman develops special concepts as the containerized drilling unit.

除此之外, 通过先人一步的市场开发, 豪氏威马以其创新的理念开发出了模块化钻探设备.

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Attention shall be paid to combination of drilling unit, operation, jarring adjust ion and maintenance.

最后,对钻具组合 、 操作要点、上击力的调整及故障维修等提出了几点注意事项.

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