| 单词 | laser pens |
| 释义 | laser1 /lāˈzər/nounA device which amplifies an input of light, producing an extremely narrow and intense monochromatic beam which can be used for a range of tasks, eg printing, optical scanning, surgical operations, etc (also adjective) ORIGIN: light amplification by stimulated emission of radiation lase intransitive verb (of a crystal, etc) to be, or become, suitable for use as a laser lāˈsing adjective and noun laser-beam machining noun (engineering) The use of a focused beam of high-intensity radiation from a laser to vaporize and so machine material laser card noun A plastic card with digital information stored in the same way as on a laser disc laser disc or laser disk noun A disc on which digitally-recorded data, audio or video material is registered as a series of pits that are readable by laser beam, a compact disc laser disc player or laser disk player noun laser level noun (surveying) An instrument for accurate single-handed levelling, using a laser beam narrowly confined in the vertical dimension and continuously rotated round an accurately-vertical axis laser pen noun A pen that incorporates a laser, allowing it to be used as a pointer laser printer noun A fast, high-quality printer using a laser beam to form characters on paper |
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