[电] 黑光放射体

天真与经验之歌:第5篇小黑孩

The Little Black Boy 小黑孩 My mother bore me in the southern wild, 在南方的荒野我妈把我生养， And I am black, but O my soul is white! 我是黑的，但是啊！我的灵魂却洁白， White as an angel is the English child, 英国的

发表于:2018-12-06 / 阅读(225) / 评论(0)

天真与经验之歌

Earth and Sky:Black and White　黑与白

Black and White黑与白 Sometimes you hear it said that white is a combination of all the colors of the rainbow -- and that black is the absence of color. Find out more about whether black and white are colors -- today on Earth and Sky. JB: This is Ear

发表于:2018-12-07 / 阅读(192) / 评论(0)

(科普英语)Earth and Sky

Supermassive Black Holes 超大质量黑洞 - 14

It means that Silk and Ree's theory may be right and if it is also right that supermassive black holes helped trigger star formation, then it must mean that all giant black holes and their galaxies ar

发表于:2018-12-07 / 阅读(373) / 评论(0)

超大质量黑洞

Book Sheds Light on Black Elite in 19th Century New York

While many Americans are familiar with black slavery in the South during the 19th Century and its role in igniting the nation's great Civil War, less attention has been paid to the black experience in northern cities such as New York, where so-called

发表于:2018-12-08 / 阅读(136) / 评论(0)

VOA标准英语2011年(二月)

初中英语人教版一年级上册23

[00:14.47]What are these? B:Can't you see? They're boxes! [00:36.02]Yes, but what's in the boxes? [01:04.89]Oh! Sweaters. [01:18.45]What colours are they? [01:22.29]B:They're light blue. [01:46.66]blue light blue dark blue [02:22.92]red light red dar

发表于:2018-12-10 / 阅读(160) / 评论(0)

初中英语人教版初一

SSS 2011-04-22

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Most plants capture sunlight. And the results are usually green. Because in photosynthesis, plant chlorophyll uses wavelengths of blue and our sun's ab

发表于:2018-12-24 / 阅读(151) / 评论(0)

Scientific American(四)月

【趣谈英语】黑匣子是橙色的-A Black Box Is Actually Orange

Pre-Listening Vocabulary aviation: related to aircraft data: information combine: put together beacon: a light or device that sends out a warning or signal A Black Box Is Actually Orange-黑匣子实际上是橙色的 After an aviation accident, the

发表于:2018-12-28 / 阅读(133) / 评论(0)

趣谈英语

SCIENCE IN THE NEWS - Stephen Hawking and Black Holes / Quan

SCIENCE IN THE NEWS - Stephen Hawking and Black Holes / Quantum Theory By Caty Weaver Broadcast: Tuesday, August 17, 2004 VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob Dought

发表于:2019-01-07 / 阅读(193) / 评论(0)

科技之光

CNN 2009-11-18

In Beijings bitter cold, President Obama was all about showcasing a new warmth with China, as he toured the historic Forbidden City and its Hall of Supreme Harmony. Beautiful and what a magnificent place to visit. By the end of this week, Mr. Obama w

发表于:2019-01-07 / 阅读(161) / 评论(0)

cnn2009年(十一)月

美国国家公共电台 NPR A 4 Billion Light-Year Journey Ends At The South Pole

MARY LOUISE KELLY, HOST: Scientists announced today that for the first time, they have been able to pinpoint the source of a particle called a high-energy neutrino. It was detected by an observatory at the South Pole. And as NPR science correspondent

发表于:2019-01-08 / 阅读(133) / 评论(0)

2018年NPR美国国家公共电台7月

好听的英文歌曲：I Need Some Sleep - Eels

EELS 是一支美国非主流乐队，Mark Everett 是乐队的核心和主唱。他们坚持着独立的音乐立场，不管多大的公司找他写歌或者代言推销产品，都统统不甩。但出于对一些人的艺术理想的认同，他们

发表于:2019-01-10 / 阅读(173) / 评论(0)

好听的英文歌曲

英文摇滚歌曲：Darkest Hour - Black sun

A black sun has risen Look up into the sky Enter your rain season Drown out the light A return to the soil Harvest by hand Depleted and bleak in An unfertile land Is it fate or is it fortune That blasts our past to oblivion Can you feel The weight ha

发表于:2019-01-10 / 阅读(174) / 评论(0)

英文摇滚歌曲

VOA标准英语2012--NASA to Launch Black Hole Hunter

NASA to Launch Black Hole Hunter Black holes have a gravitational pull so intense that not even light can escape from them. As gas, dust and stars are sucked in, the material accelerates and heats up, generating powerful X-ray light emissions. Only a

发表于:2019-01-13 / 阅读(159) / 评论(0)

VOA标准英语2012年(六月)

初中英语人教版一年级课文讲解上 Unit 14a

发表于:2019-01-16 / 阅读(165) / 评论(0)

初中英语人教版一年级

经济学人: 海洋生物的隐身斗篷 (1)

THE ocean is dark and full of terrors, and the black dragonfish is the darkest of them all. 海洋中充满黑暗与恐惧，黑色的深海龙鱼是其中最黑暗的生物。 Its surface, new measurements reveal, is as black as the blackest materia

发表于:2019-01-26 / 阅读(187) / 评论(0)

经济学人科技系列

微电子辞典-5

Early effect 厄利效应 Early failure 早期失效 Effective mass 有效质量 Einstein relation(ship) 爱因斯坦关系 Electric Erase Programmable Read Only Memory(E2PROM) 一次性电可擦除只读

发表于:2019-02-05 / 阅读(198) / 评论(0)

实用英语

英语歌曲:打榜热歌Black Eyed Peas - Rock That Body

打榜热歌：Black Eyed Peas - Rock That Body Artist：Black Eyed Peas Song：Rock That Body I wanna rock right now I want I wanna rock right now I want I wanna rock right now Now, now, rock right now I want I wanna rock right now I want I wanna ro

发表于:2019-02-06 / 阅读(191) / 评论(0)

流行英文歌曲

英文歌曲:Rock That Body

Black Eyed Peas新单曲Rock That Body在本周Billboard排行榜上打入前十，这也是他们新专辑《The End》中第五首Top 10金曲。这张专辑的首支单曲《Boom Boom Pow》在2009年4月首次问鼎全美冠军。 Black Eyed Pea

发表于:2019-02-07 / 阅读(171) / 评论(0)

好听的英文歌曲

英语歌曲:布鲁斯 Young Jeezy - My president

饶舌:Young Jeezy - My president 相关介绍：来自美国亚特兰大的Young Jeezy原本并不想成为一名说唱歌手，在成为歌手之前他更加希望自己能够成为唱片工业中的幕后角色，比如一个唱片工业的商人。

发表于:2019-02-11 / 阅读(190) / 评论(0)

节奏布鲁斯

第243期:快速入睡最好的方法是什么

重点词汇 Wind Down: 放松，松弛 Meditation：冥想 1. Make Your Bedroom Pitch Black 1.卧室漆黑 2. Make Your Bedroom Quiet 2.卧室保持安静 3. Sleep in the Perfect Temperature 3.室内温度适宜睡眠 4. Block Blue Light 4.躲开蓝光

发表于:2019-03-02 / 阅读(171) / 评论(0)

卡卡课堂早餐英语

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alar appendage

anode current for white light output