This flashcard defines 'laser' as a device that produces a concentrated beam of light used for various technical and medical applications, or the beam of light itself. It is also referred to as a laser instrument.
[N-COUNT 可数名词]激光 A laser is a narrow beam of concentrated light produced by a special machine. It is used for cutting very hard materials, and in many technical fields such as surgery and telecommunications.
...new laser technology...
新的激光技术
Researchers realised that a tunable laser beam might be useful in surgery.
研究人员意识到,可调谐激光束也许可以用在外科手术中。
2
[N-COUNT 可数名词]激光器 A laser is a machine that produces a laser beam.
...the first-ever laser, built in 1960.
有史以来第一台激光器,于1960年制造
Oxford
laser/ˈleɪzə(r); NAmEˈleɪzər/nouna device that gives out light in which all the waves oscillate(= change direction and strength)together, typically producing a powerful beam of light that can be used for cutting metal, in medical operations, etc. 激光器;镭射器◆a laser beam激光束◆a laser navigation device激光导航装置◆The barcodes on the products are read by lasers.产品上的条码是用激光读取的。◆a laser show(= lasersused as entertainment) 激光表演◆She's had laser surgeryon her eye. 她做了眼部激光手术。laserlaserslaser/ˈleɪzə(r); NAmEˈleɪzər/
LDC
laserla‧ser /ˈleɪzə $ -ər/ ●●○ noun [countable]
Word Origin
word sets
Collocations
1a piece of equipment that produces a powerful narrow beam of light that can be used in medical operations, to cut metals, or to make patterns of light for entertainment: laser surgery2a beam of light produced by a laser
WDF
laser
[ˈleɪzə(r)]
原型:laser 是 lase 的比较级
CET4CET6TEM4考研TOEFL
n3926
7766
665
1231
2722
931
2217
NOUN3121
378608
VERB52702
686
Spoken:
32599602
lasers[1651]
激光(98%),镭射(2%)
n.激光
n.(Laser)人名;(德)拉泽
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