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1. The counterbore guide is essential for maintaining the stability of the drilling string.
反冲导向器对于保持钻杆的稳定性至关重要。
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2. The engineers developed a new counterbore guide design that significantly improved drilling efficiency.
工程师们开发了一种新的反冲导向设计，显著提高了钻井效率。
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3. The counterbore guide was used to control the direction of the drilling fluid, ensuring it flowed smoothly through the wellbore.
反冲导向器被用来控制钻井液的方向，确保它顺畅地通过井眼。