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词汇 ruling engine
释义

Definition of ruling engine in English:

ruling engine

noun

  • A machine for engraving equally spaced parallel straight lines on a surface; (in later use) especially one for engraving lines on a diffraction grating.

Origin

Early 19th century; earliest use found in The London Journal of Arts and Science.

Definition of ruling engine in US English:

ruling engine

noun

  • A machine for engraving equally spaced parallel straight lines on a surface; (in later use) especially one for engraving lines on a diffraction grating.

Origin

Early 19th century; earliest use found in The London Journal of Arts and Science.
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