离散频率;不连续频率

discrete frequency的用法和样例：

例句

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.激光器使偶然的混杂频率的电磁辐射，变为一个或更多的高度强化和连续的紫外线、可见光或红外线辐射的分离频率仪器中的一种

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Here's the news at 11:30. Thousands of people have marched through the centre of Corby in Northamptonshire to protest against plans to close the steel works, the town's major employer. The marchers de

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新概念英语第一册Flash第2版

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Friends 老友记全10季英语插曲

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2011年VOA慢速英语(十)月

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Delay - This is the wait time between to specific events, and regarding satellite communications, it is the time it takes for a signal to go from the transmission station up to orbit and through the s

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电信英语

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Well, I was born with a rare visual condition called achromatopsia, which is total color blindness, 我出生在一个色彩极少的世界,世界只有明暗之分，这叫做全色盲 so I've never seen color, 所以我不知道什么是颜色， a

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Books and Arts; American art museums; A hinterland beauty; 文艺；书评；美国艺术博物馆; 腹地美景; Moshe Safdie and some intelligent curatorial work have produced a rural gem; 摩西萨夫迪和一些聪明的策展工作创造了一个田

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A major conference, The 2015 Conference on Big Data Index of Culture and Entertainment Industry, was held on Friday in Beijing, during which awards were given to the most talked about TV series, online dramas, movies and variety shows in China. Stand

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实用英语

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There are many ways to express the frequency of events. Here are just a few. 你可以用许多方式来表达事情发生的频率，以下仅为其中一些。 1. a few times 1.几次 2. all the time 2.总是 3. almost always 3.几乎总是 4. almo

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实用英语

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实用英语

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考研英语

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英语口语

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1959: The Year That Changed Everything A crowd gathers in New York's Times Square to usher in the New Year, 1959. The importance of what future met them that year is still being debated. How Significant Will 2009 Appear in the Lens of History? Jeff G

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阅读空间

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英语口译

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Now, have any of y'all ever looked up this word? 好，你们中有谁查过这个单词？ You know, in a dictionary? Yeah, that's what I thought. 用字典？是的，我想也就这个样子。 How about this word? Here, I'll show it to you. 这个单

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TED演讲教育篇

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学英语单词

adularia-ablite series

age-specific death rate

air trapping

alae lingulae cerebelli

alvardite

analytical atomic absorption spectroscopy