[化] 微米级粒子; 超细粒子

波兰工程师研发空气净化设备

From VOA Learning English, this is the Health Lifestyle report. From Asia to Europe to North America, poor air quality is making people sick and, in some cases, killing them at an early age. Air pollution causes six million premature deaths every yea

发表于:2018-12-07 / 阅读(187) / 评论(0)

2017年VOA慢速英语(四)月

TED演讲:摩尔有多大(1)

OK, today we're going to talk about the mole. 今天我们来谈一下摩尔。 Now, I know what you're thinking: I know what a mole is, 我知道你现在在想：我知道摩尔是什么， it's a small furry creature that digs holes in the ground

发表于:2018-12-18 / 阅读(190) / 评论(0)

TED演讲教育篇

SSS 2012-06-27

Every time you inhale, oxygen passes from your windpipe to your lungs and on into your bloodstream. But what if your windpipe was blocked? Getting the gas straight to your blood could save your life. Wait, put down that syringea large air bubble in a

发表于:2018-12-24 / 阅读(177) / 评论(0)

Scientific American(六)月

美国英语听力80篇3 Lesson41

[00:07.21]NASA's Stardust spacecraft has successfully deployed a device that will collect extremely small particles in space. [00:16.95]The particles are called dust. [00:19.72]They form a stream of particles that flows through our solar system. [00:

发表于:2018-12-26 / 阅读(145) / 评论(0)

美国英语听力80篇

4-13 都市杀手

Big City Killer If the cigarettes don't get 1 you the traffic pollution will. Up to a fifth of all lung cancer deaths in cities are caused by tiny particles of pollution, most of them from vehicle exh

发表于:2018-12-30 / 阅读(193) / 评论(0)

英语沙龙2004全年合辑上

新时尚：包包越小越时髦

英国《每日邮报》关于女性最爱购买物品的清单中，包包高居榜首，连鞋子、衣服、珠宝、化妆品等女性关注度颇高的日用品都无法与之匹敌。还在长草大包包？现在迷你包正以碾压的姿态横

发表于:2019-01-03 / 阅读(197) / 评论(0)

阅读空间

中国的空气污染

Rob: Hello I'm Rob. Welcome to 6 Minute English. I'm joined today by Finn. Hello Finn. Finn: Hello Rob. Rob: In this programme we're talking about a serious problem that has been affecting some of the big cities in China: that's air pollution. Finn:

发表于:2019-01-07 / 阅读(172) / 评论(0)

六分钟英语

SSS 2008-04-10

This is Scientific American's 60-Second Science, I'm Steve Mirsky, got a minute? Every Star Trek fan knows theres matter and antimatter, but why is there apparently so much more matter than antimatter？Scientific American's JR Minkel: Two recent exp

发表于:2019-01-08 / 阅读(225) / 评论(0)

Scientific American(四)月

SCIENCE IN THE NEWS - Snow

SCIENCE IN THE NEWS - December 10, 2002: Snow By George Grow VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with SCIENCE IN THE NEWS, a VOA Special English program about recent dev

发表于:2019-01-08 / 阅读(248) / 评论(0)

科技之光

VOA慢速英语2011-SCIENCE IN THE NEWS - Let It Snow!

FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today, we will tell you everything you wanted to know about snow. (MUSIC) FAITH LAPIDUS: Winter has returned to northern parts of t

发表于:2019-01-11 / 阅读(174) / 评论(0)

2011年VOA慢速英语(一)月

VOA标准英语2011--Study: Upper-Atmosphere Particles Slow P

Study: Upper-Atmosphere Particles Slow Pace of Global Warming A recent study finds tiny particles suspended high in Earths atmosphere are having a greater impact on global climate than previously believed. The airborne particles, known as aerosols, a

发表于:2019-01-14 / 阅读(158) / 评论(0)

VOA标准英语2011年(八月)

VOA慢速英语20060110b

SCIENCE IN THE NEWS - Winter Cold: Everything You Ever Wanted to Know About SnowBy George Grow Broadcast: Tuesday, January 10, 2006 (MUSIC) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob D

发表于:2019-01-16 / 阅读(203) / 评论(0)

2006年慢速英语（一）月

英语听力文摘 English Digest 475、打针一定会痛吗？

Microneedles 微针疗法 Female: From flu vaccin es to tetanus booster s , injections are a must in modern medicine. But do they always have to make you say Ouch? Male: Eh,no? F: No,indeed.If new microneedle technology is successful, we may soon hav

发表于:2019-01-26 / 阅读(160) / 评论(0)

英语听力文摘 English Digest

Official cars ordered off roads during hazardous pollution

BEIJING, Jan. 29 (Xinhua) -- Thirty percent of official cars in Beijing should not be used when there is extremely bad pollution, traffic authorities confirmed Tuesday. The order was implemented on Monday evening to help combat the fourth round of he

发表于:2019-02-04 / 阅读(298) / 评论(0)

英语新闻

世界上最小的电脑居然跟硬币差不多

Computers used to consume whole rooms, but now one computer can fit on the edge of a nickel. At just one millimeter cubed, the Michigan Micro Mote (M^3) is the smallest autonomous computer in the world. 最初的计算机要占用整个房间的空间，

发表于:2019-02-07 / 阅读(189) / 评论(0)

阅读空间

原版英语对话1000个:302 Ecuador

Jose: Ecuador, what do you want to know about my country? Todd: Well, can you talk about Ecuador like, um, you're from Ecuador? Jose: Yes, yes! Todd: How big is Ecuador? Jose: 80% of Japan. Todd: Oh, really! 80% the size. Jose: The size of Japan. Tod

发表于:2019-02-08 / 阅读(219) / 评论(0)

原版英语对话1000个

东京奥运会开幕式上，会有一场人造流星雨

If you thought Russia's recent efforts to prevent rain in the sky from dampening holiday spirits represented the ultimate in scientific stage management, you ain't seen nothing yet. 如果你认为俄罗斯最近为了阻止雨水毁掉节日氛围的努

发表于:2019-02-09 / 阅读(188) / 评论(0)

实用英语

英语访谈对话 302 Ecuador

发表于:2019-02-17 / 阅读(156) / 评论(0)

英语访谈对话

【英语时差8,16】打喷嚏-下

Once stimulated, these muscles go to work and cause us to forcefully expel air from the mouth and nose. Or, in other words, we sneeze. Because the nose lining tends to swell when we lie down, making it even more sensitive to sneeze-causing particles,

发表于:2019-02-23 / 阅读(431) / 评论(0)

英语时差8，16

万物简史第367期:进入对流层(8)

Certainly there is no shortage of energy in the world above our heads. One thunderstorm, it has been calculated, can contain an amount of energy equivalent to four days' use of electricity for the whole United States. In the right conditions, storm c

发表于:2019-02-25 / 阅读(175) / 评论(0)

万物简史

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