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laser

/ley-zer/US // ˈleɪ zər //UK // (ˈleɪzə) //

激光器,激光,激光机,激光设备

Related Words

Definitions

n.名词 noun
  1. 1

    Physics.

    • : a device that produces a nearly parallel, nearly monochromatic, and coherent beam of light by exciting atoms to a higher energy level and causing them to radiate their energy in phase.

Synonyms & Antonyms

Examples

  • You can use powerful lasers to measure the distance of these objects, like radar or sonar.

  • This Raman spectroscopy shines laser light on a sample, then measures how the light bounces off.

  • SHERLOC, or Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals, will take similar measurements using an ultraviolet laser.

  • In one incident, a man is accused of aiming a laser pointer at a police helicopter.

  • Carbon, oxygen, nitrogen and other more complex substances must be available for life to both evolve and build radio transmitters or lasers to send signals through space.

  • Initially, it will be able to carry 1,000-pound satellite-guided bombs or 500-pound laser-guided weapons.

  • Where these laser-like missiles are falling out of the sky onto a city and you have to stop each of them from hitting the targets?

  • “The laser-wielding robot is a real threat,” Hetflaisz says.

  • Obama is widely believed to tap an ex-physicist who cuts military waste like a laser to become the next secretary of defense.

  • Green laser pointers shined in the faces of men in uniforms looking down from the roof of the National Palace.

  • Then, as though finding an error, he halted its operation and swung the laser-head back away from the work piece.

  • Casually, without even looking at the Security man, he had somehow centered the laser directly on him.

  • The theory behind the heat projector was simply an extension of the laser theory, plus a few refinements.

  • Or, I should say, the thing that is supposed to look like a laser component.

  • It looked like a keychain laser-pointer, or maybe a novelty light-saber.