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单词 laser
释义

laser

Definition
Light Amplification by Stimulated Emission of Radiation. Optical electronic device that generates an intense (very narrow) beam of single color (monochromatic) light by pumping (amplifying) photons with more energy through collisions with other photons. Laser beams can travel vast distances without dispersion and can carry enormous amounts of energy (100 million watts per square centimeter, and more). Different types of lasers are used for purposes as diverse as CD/DVD writing and reading, communications, land mapping, metal cutting and welding, surgery, and anti-missile defenses.

Use 'laser' in a Sentence

In a movie I saw when I was a kid, there was a character that wanted to have sharks with laser beams attached to their heads.
Using a laser can really speed up the process when making certain products or in an industrial setting and keep costs down.
The use of a laser may help speed up the process of making certain objects will help cut your overhead costs.
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更新时间:2025/3/15 2:49:21