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连续造斜器
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连续造斜器
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continuous whipstock
连续造斜器
利用专门机构对钻头施加固定方向侧向力,或使钻头相对于钻孔轴线偏转一定角度,实现连续偏斜钻进的工具。
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tea
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teacher and student interaction and achievement
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