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单词 θ210464
释义
society > occupation and work > industry > drilling for oil or gas > [noun] > laying of pipelines > cleaning or inspecting pipelines (1)
pigging1972

The action or process of using a pig or pigs (pig, n.1 16) to clean or inspect the inside of an oil or gas pipeline.

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更新时间:2025/3/22 4:35:08