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单词
breakout block
释义
breakout block
breakout block
[
′brā‚kau̇t ‚bläk
]
(petroleum engineering)
A heavy plate fitting in a rotary table that holds a drill bit being unscrewed from a drill collar.
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rigger brush
rigger brushes
-riggers
riggers
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更新时间:2026/2/8 11:16:13