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词汇 timing mark
释义

Definition of timing mark in English:

timing mark

noun
  • A mark or line used as a visual aid in the timing of something; specifically (in an internal-combustion engine) each of the marks on an engine that are used as guides when assembling the timing gear or altering the valve timing.

Origin

Early 20th century; earliest use found in U.S. Patents.

Definition of timing mark in US English:

timing mark

noun
  • A mark or line used as a visual aid in the timing of something; specifically (in an internal-combustion engine) each of the marks on an engine that are used as guides when assembling the timing gear or altering the valve timing.

Origin

Early 20th century; earliest use found in U.S. Patents.

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