英语词汇“pitch polisher”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

pitch polisher

pitch polisher n. a metal instrument coated with pitch or resin, used for polishing curved surfaces such as those of specula (speculum n. 2).

ΚΠ

1783 J. Edwards Direct. Composition Telescopes in Naut. Almanac 1787 43 When this is perfected, it must be polished upon the Pitch Polisher of a circular Form, whose Diameter is about One-tenth Part greater than the transverse Axis of the Speculum.

1853 O. Byrne Handbk. Artisan Index 477/2 Pitch polisher, for specula.

1999 Evening Herald (Plymouth) (Nexis) 9 Mar. (Business Suppl.) 5 The machine is a Continuous Pitch Polisher..which will polish optical lenses of one metre diameter to a flatness of less than 0.1 micron or 0.0001mm.

extracted from pitchn.¹

as lemmas

单词	pitch polisher
释义	> as lemmas pitch polisher pitch polisher n. a metal instrument coated with pitch or resin, used for polishing curved surfaces such as those of specula (speculum n. 2). ΚΠ 1783 J. Edwards Direct. Composition Telescopes in Naut. Almanac 1787 43 When this is perfected, it must be polished upon the Pitch Polisher of a circular Form, whose Diameter is about One-tenth Part greater than the transverse Axis of the Speculum. 1853 O. Byrne Handbk. Artisan Index 477/2 Pitch polisher, for specula. 1999 Evening Herald (Plymouth) (Nexis) 9 Mar. (Business Suppl.) 5 The machine is a Continuous Pitch Polisher..which will polish optical lenses of one metre diameter to a flatness of less than 0.1 micron or 0.0001mm. extracted from pitchn.¹ < as lemmas
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