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单词 rock bolt
释义

Definition of rock bolt in English:

rock bolt

noun

  • A bolt for attaching something to rock; (Mining) a tensioned rod passing through a bed of rock and anchoring it to the body of rock behind.

Origin

Late 19th century; earliest use found in U.S. Patents.

Definition of rock bolt in US English:

rock bolt

noun

  • A bolt for attaching something to rock; (Mining) a tensioned rod passing through a bed of rock and anchoring it to the body of rock behind.

Origin

Late 19th century; earliest use found in U.S. Patents.
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更新时间：2025/1/13 5:23:54