Word · Frequency #4841
laser
激光；激光器
核心释义
a device that produces a narrow, intense beam of light (laser light); also, the light itself
- 1.
一种产生单色、相干光束的设备。
A device that produces a monochromatic, coherent beam of light.
- 2.
从某些伞形科植物中获得的树脂。
A gum resin obtained from certain umbelliferous plants.
- 3.
一种简单的小艇。
A simple type of dinghy
- 4.
光放大通过受激辐射发射的缩写；产生强烈单色相干光束的光学装置
an acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light
- 5.
由此设备产生的光束；激光束。
A beam of light produced by such a device; a laser beam.
- 6.
这种植物。
Such a plant.
- 7.
激光打印机。
A laser printer.
一种产生单色、相干光束的设备。；从某些伞形科植物中获得的树脂。；一种简单的小艇。；光放大通过受激辐射发射的缩写；产生强烈单色相干光束的光学装置；由此设备产生的光束；激光束。
用法In use
The laser cut through the metal sheet with precision.
用法提示：laser 作为名词，表示用于切割的激光。
Doctors use a laser to correct vision problems.
用法提示：laser 作为名词，表示医疗用的激光设备。
The laboratory is equipped with several high-powered lasers.
用法提示：lasers 是 laser 的复数形式，指多个激光装置。
a laser
可数名词，单数形式前常用冠词a或the。
The surgeon used a laser to remove the tumor.
外科医生用激光切除肿瘤。
lasers
复数形式泛指一类设备。
Lasers are used in many industrial applications.
相关词与表达Connections
搭配Collocations
- laser beam
- 激光束
- The laser beam cut through the metal with precision.激光束精确地切开了金属。
- laser surgery
- 激光手术
- He underwent laser surgery to correct his vision.他接受了激光手术来矫正视力。
- laser printer
- 激光打印机
- Our office uses a high-speed laser printer.我们办公室使用一台高速激光打印机。
- laser pointer
- 激光笔
- The teacher used a laser pointer to highlight key points.老师用激光笔强调重点。
- laser treatment
- 激光治疗
学习提示Learner notes
记忆技巧Memory Tip
联想'laser'中'la'像'拉'，'ser'像'射'，激光就是拉长射出。
语境与语域Context & Register
register: neutral; contexts: scientific, medical, industrial; note_zh: 通常用于科学、医学和工业领域，也出现在日常用语中。
语法说明Grammar Note
常作定语（如 laser printer）
发音与拼写Pronunciation & Spelling
All listed words rhyme with 'laser' (stressed vowel /eɪ/ + /zɚ/). Words like 'buzzer' and 'eraser' look similar but have different stressed vowels.
用法优先级Usage priority
Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
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Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.