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单词 twist drill
释义

WordReference Random House Unabridged Dictionary of American English © 2024
twist drill′, [Mach.]
  1. Mechanical Engineeringa drill with one or more deep helical grooves in the body.
  • 1870–75

Collins Concise English Dictionary © HarperCollins Publishers::
twist drill n
  1. a drill bit having two helical grooves running from the point along the shank to clear swarf and cuttings
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更新时间:2025/2/23 2:01:35