名詞 laser:

1. an acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light
   同義詞：optical maser

1. In optical recording, refers to the areas of the data tracks which are between the pits. These are typically the areas not touched by the recording laser beam during mastering.
   在光記錄技術(shù)中，指光道上兩個(gè)凹槽之間的區(qū)域。在制作母盤時(shí)記錄激光束不照射這些區(qū)域。參閱pit。
2. The doctor finished the operation, but his success depended on the backroom boys who had invented the new laser scalpel.
   醫(yī)生做完了手術(shù)，但他的成功有賴于那些發(fā)明了新型激光手術(shù)刀的研究人員。
3. But can laser beams be developed in such a way to destroy attacking missiles in space?
   但是能否以這樣的方法把激光發(fā)展到可以在空，鳳摧毀進(jìn)攻的導(dǎo)彈呢？
4. Lasers can be used to perform operations nowadays.
   現(xiàn)在激光可以用來做手術(shù)。

la.ser

n.（名詞）
Any of several devices that convert incident electromagnetic radiation of mixed frequencies to one or more discrete frequencies of highly amplified and coherent ultraviolet, visible, or infrared radiation.
激光器：使偶然的混雜頻率的電磁輻射,變?yōu)橐粋€(gè)或更多的高度強(qiáng)化和連續(xù)的紫外線、可見光或紅外線輻射的分離頻率儀器中的一種
A device whose output is in an invisible region of the electromagnetic spectrum.
激光裝置：把信號(hào)輸入于電磁光譜不可見區(qū)域的一種裝置

來源：
l(ight) a(mplification by) s(timulated) e(mission of) r(adiation)
l(ight) a(mplification by) s(timulated) e(mission of) r(adiation)