英语词汇“crown drill”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

> as lemmas

crown drill

crown drill n. Engineering a drill with a bit in the form of a tube with projecting cutting edges; cf. sense 17.

ΚΠ

1875 Inst. Mech. Engineers: Proc. 28 121 The diamonds on the inside of the crown drill had very little pressure upon them.

1901 Compressed Air Oct. 1556/1 The drilling tool is a cast-steel crown drill, with six radial cutters, and measures 3 in. in diameter and 8 in. in length.

1999 H. U. Cameron in James V. Bono Revision Total Hip Arthroplasty xiv. 285 A straight stem can be removed by means of an extended trochanteric osteotomy, implant section, and a crown drill or hollow mill.

extracted from crownn.

as lemmas

单词	crown drill
释义	> as lemmas crown drill crown drill n. Engineering a drill with a bit in the form of a tube with projecting cutting edges; cf. sense 17. ΚΠ 1875 Inst. Mech. Engineers: Proc. 28 121 The diamonds on the inside of the crown drill had very little pressure upon them. 1901 Compressed Air Oct. 1556/1 The drilling tool is a cast-steel crown drill, with six radial cutters, and measures 3 in. in diameter and 8 in. in length. 1999 H. U. Cameron in James V. Bono Revision Total Hip Arthroplasty xiv. 285 A straight stem can be removed by means of an extended trochanteric osteotomy, implant section, and a crown drill or hollow mill. extracted from crownn. < as lemmas
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