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天火字典

英日字典: cross_wire



The cross_wire has 1 Senses.

  • cross wire, cross hair
  • either of two fine mutually perpendicular lines that cross in the focus plane of an optical instrument and are use for sighting or calibration; "he had the target in his cross hairs"
  • 光学機器の焦点面で交差し、観察または測定に使用されるお互いに直角に交わった2つの細かい線のどれか

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