光谱类别

spectrum classes的用法和样例:

例句

  1. No one has ever gone to the surface of a number of different asteroids of different spectral classes and done the real geological characterization.没人曾到过很多不同光谱类别的小行星表面上完成真正的地质特征考察。

I attend English classes at a language program in my city because I want to improve my communication skills. English has become the international language around the world, and I might be able to get better employment and make more friends if I learn

发表于:2018-12-03 / 阅读(228) / 评论(0) 分类 在学校—At School

Online Classes May Force Changes at Universities This is pretty amazing, said the University of Virginia's David Evans, teaching an online introduction to Computer Science. Online classes are now taught by many top universities and offer everything f

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发表于:2018-12-26 / 阅读(348) / 评论(0) 分类 转学-Transferring to a Universit

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Education Report - Inmates Find Hope in College Classes at San Quentin Prison 教育报道 - 圣昆廷监狱为犯人提供大学课程 This is the VOA Special English Education Report. 这里是美国之音慢速英语教育报道。 Last week we to

发表于:2019-01-02 / 阅读(282) / 评论(0) 分类 2011年VOA慢速英语(七)月

Cooking Classes Aim to Restore Health After Addiction At Boston Medical Center, patients recovering from drug dependencies are getting healthier one meal at a time. For years, the hospital has offered cooking classes for patients with medical conditi

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As It Is - Remember Your Chemistry Classes? An international team of researchers recently reported creation of a new element that is 40 percent heavier than lead. The researchers successfully developed what they are calling Element Number 117 at a la

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Some call it the hormone of love. Its oxytocin and it helps moms bond with and breast-feed their babies, and even keeps romantic couples content. Now a study suggests that this same hormone might also help people with autismby improving their social

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This is the VOA Special English Education Report. Surveys of American teenagers find that about half of them do not get enough sleep on school nights. They get an average of sixty to ninety minutes less than experts say they need. One reason for this

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学英语单词
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Sφnder Hygum
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up-take
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Zirl