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单词
hydraulic swivel head
释义
hydraulic swivel head
hydraulic swivel head
[
hi′drȯ·lik ′swiv·əl ‚hed
]
(mechanical engineering)
In a drill machine, a swivel head equipped with hydraulically actuated cylinders and pistons to exert pressure on and move the drill rod string longitudinally.
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更新时间:2024/12/22 18:01:07