亚毫米波光谱

新东方背诵文选 L48 Bacteria

Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is abo

发表于:2018-12-01 / 阅读(275) / 评论(0)

新东方背诵文选

数学英语 38 What Do Prefixes Mean in Math? - Part 1

by Jason Marshall We use a lot of math words in our day-to-day lives without really understanding what they mean or where they come from. For example, prefixes like mega, giga, and tera that we use to describe computer hard drive sizes (think megabyt

发表于:2018-12-07 / 阅读(151) / 评论(0)

数学英语

SSS 2012-01-13

This is Scientific America's 60 second science, I'm Sentay Graber, this will just take a minute. Magnifying glass, telescope, tiny tiny tape measure, these are the weapons with which researchers are fading it out to find the world's smallest frog.One

发表于:2018-12-24 / 阅读(177) / 评论(0)

Scientific American(一)月

SSS 2012-01-16

Magnifying glass, calipers, teeny tiny tape measure, these are the weapons with which researchers are fighting it out to find the world's smallest frog. One team just announced the discovery of the unaverage 7.7 millimeter p* which can sit comfortabl

发表于:2018-12-24 / 阅读(166) / 评论(0)

Scientific American(一)月

考研背诵50篇——48 Bacteria

发表于:2018-12-30 / 阅读(144) / 评论(0)

考研背诵50篇

SSS 2011-07-08

Cameras were once big and bulky. Today,really good cameras fit in your pocket. And now, researchers at Cornell havedeveloped a camera thats just a half-millimeter on each side and a hundredthof a millimeter thick. The lens-less device is called a Pla

发表于:2019-01-08 / 阅读(180) / 评论(0)

Scientific American(七)月

2016诺贝尔化学奖:世界上最小的机器

AS IT IS 2016-10-05 Nobel in Chemistry Goes to Makers of Worlds Smallest Machines 2016诺贝尔化学奖:世界上最小的机器 Three scientists have won the Nobel Prize in Chemistry for their work in developing tiny machines. The three men are Jea

发表于:2019-01-12 / 阅读(167) / 评论(0)

2016年VOA慢速英语(十)月

托福听力词汇量不够怎么办

听力薄弱的考生是很难在托福考试中得到高分的。首先考生对自己的词汇量应该有个基本的了解。考生可以翻看一下TPO练习的问题部分，如果连审题都有困难，那么建议先别急着考试，好好从

发表于:2019-01-17 / 阅读(180) / 评论(0)

托福英语

托福听力之3个听力词汇量的5大关键点

在托福考试中，听力是一个很重要的环节，而在听力备考的过程中，词汇又是非常重要的。在托福听力的备考过程中，我们细细翻一下TPO资料，如果发现连审题都有着困难，那么，这时候就建

发表于:2019-01-17 / 阅读(202) / 评论(0)

托福英语

绿箭侠第一季第30期:兄弟会

Got ballistics back on the Holder murder. 霍尔德凶案的弹道分析出来了 They pulled two 7.62 millimeter bullets out of him. 他们取出了他身上两枚7.62毫米的子弹 According to the stippling and size of the entry wound, 根据伤口

发表于:2019-01-29 / 阅读(146) / 评论(0)

绿箭侠第一季

Egypt's president names vice president, new military leadership

CAIRO, Aug. 12 (Xinhua) -- Egyptian President Mohamed Morsi appointed Sunday Abdel Fatah el Seisy as defense minister and chief of the supreme council of the armed forces, presidential spokesman Yasser Ali announced. El Seisy, 58, used to be the lead

发表于:2019-02-07 / 阅读(183) / 评论(0)

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【英语语言学习】人类到火星旅行

From VOA Learning English, this is As It Is. Welcome back. Im Caty Weaver. On the show today, we look into the future of space exploration. The American space agency NASA has announced plans for a new effort to study the sun. And, NASA scientists are

发表于:2019-02-16 / 阅读(156) / 评论(0)

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经济学人: 热带疾病 (2)

Properly analysed, Fraunhofer lines provide information about the exact chemical make-up of whatever is reflecting the light. 经过恰当分析，夫琅和费谱线可以提供关于任何反光物体的化学组成的确切信息。 Their patterns

发表于:2019-02-16 / 阅读(195) / 评论(0)

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经济学人237:寻找外星生物闪烁吧小行星

The search for alien life 寻找外星生物 Twinkle, twinkle, little planet 闪烁吧，小行星 An undervalued optical trick may help to find life in other solar systems 一个不被人重视的光学方法可能能帮助寻找其他太阳系的生命

发表于:2019-02-16 / 阅读(211) / 评论(0)

经济学人科技系列

双语有声阅读：细菌

Bacteria Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacter

发表于:2019-02-17 / 阅读(172) / 评论(0)

双语有声阅读

双语有声阅读：Bacteria

48 Bacteria Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bac

发表于:2019-02-17 / 阅读(184) / 评论(0)

双语有声阅读

经济学人452:光学方法帮助寻找其他太阳系的生命

Science and technology. 科技。 The search for alien life 寻找外星生物 Twinkle, twinkle, little planet 闪烁吧，小行星 An undervalued optical trick may help to find life in other solar systems 一个不被人重视的光学方法可能能

发表于:2019-02-18 / 阅读(145) / 评论(0)

经济学人综合

万物简史第184期:爱因斯坦的宇宙(27)

Combining Leavitt's cosmic yardstick with Vesto Slipher's handy red shifts, Edwin Hubble now began to measure selected points in space with a fresh eye. In 1923 he showed that a puff of distant gossamer in the Andromeda constellation known as M31 was

发表于:2019-02-25 / 阅读(208) / 评论(0)

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托福考试话题类单词术语

话题类单词，术语托福考试的lecture话题非常广泛，虽然官方指南给出了艺术、生命科学、自然科学和社会科学四大类话题，但事实上这四个话题已经能囊括任何专业知识点了，知识面再广的学

发表于:2019-02-26 / 阅读(205) / 评论(0)

托福英语

托福听力中遇到太多的生词如何处理

很多考生托福听力薄弱，主要原因在于托福词汇量不够。听力薄弱的考生是很难在托福考试中得到高分的。可能很多考生对托福考试的整体印象是考试内容比较专业，有大量的专有名词，一拿

发表于:2019-03-04 / 阅读(236) / 评论(0)

托福英语

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