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单词 pump drill
释义

Definition of pump drill in English:

pump drill

noun

  • A drill in which the shaft is rotated by sliding up and down a crosspiece to which is attached a cord that winds and unwinds about the shaft.

Origin

Mid 19th century; earliest use found in Edward Tylor (1832–1917), anthropologist.

Definition of pump drill in US English:

pump drill

noun

  • A drill in which the shaft is rotated by sliding up and down a crosspiece to which is attached a cord that winds and unwinds about the shaft.

Origin

Mid 19th century; earliest use found in Edward Tylor (1832–1917), anthropologist.
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更新时间：2024/12/27 17:46:15