The bevel milling cutter for cutting groove of oil casing - pipes was designed.

设计了用于油气田管道坡口切割的角度铣刀。

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The bevel milling cutter for cutting groove of oil casing-pipes was designed.

设计了用于油气田管道坡口切割的角度铣刀。

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In order to demolish discarded oil Wells effectively, large linear cumulative cutter is always applied in shallow sea.

为了有效地爆破拆除浅海废弃油井，需要应用大型线型聚能切割器。

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While it was being towed, the Kulluk was accompanied by a Coast Guard cutter and two oil-spill response ships, the incident response team said.

CNN: Alaska drilling rig towed to harbor off Kodiak Island

The Unified Command said three additional tugs are on standby along with the Coast Guard Cutter Alex Haley and two oil spill response vessels.

NPR: Grounded Shell Oil-Drilling Ship Refloated