Rigs form a dense ring around the tribe’s borders; only recently has drilling begun within.

钻井机密密麻麻地在部落边境上围成一个圈，直到最近才开钻。

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Rigs form a dense ring around the tribe's borders; only recently has drilling begun within.

钻井机密密麻麻地在部落边境上围成一个圈，直到最近才开钻。

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With cars, milling, boring, drilling four automation function, can be turning sphere, cylinder, cone, thread, tapping, end face, inner and outer ring groove, etc.

具有车、铣、镗、钻四大自动化功能，可车削球面、柱面、锥面、螺纹、攻丝、端面、内外环槽等。

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