[网络] ST_science_misc杂项 - 测量单位

数学英语 35 How to Convert Units

by Jason Marshall In the last two articles weve talked about the meaning of multiplication and how to use this meaning to make multiplying fractions easier. Today, were going to put everything weve learned about multiplication to good use by learning

发表于:2018-12-07 / 阅读(37) / 评论(0)

数学英语

Space Digest

04 美国的航空航天技术 DATE=2-21-01 TITLE=EXPLORATIONS #1940 - Space Digest BYLINE=Paul Thompson VOICE ONE: This is Steve Ember. VOICE TWO: And this is Shirley Griffith with the VOA Special En

发表于:2018-12-07 / 阅读(44) / 评论(0)

科技之光

TED演讲：重新定义字典(8)

So if you think of the word set, a set can be a badger's burrow, 当你想到一个词setset可以指獾的穴， a set can be one of the pleats in an Elizabethan ruff, and there's one numbered definition in the OED. 也可以指伊利沙白时代衣领

发表于:2018-12-19 / 阅读(35) / 评论(0)

TED演讲教育篇

SSS 2011-01-24

This is Scientific American's 60-Second Science. I'm John Matson. Got a minute? In a laboratory vault outside Paris is a small cylinder of platinumiridium alloy that serves as the standard for all mass measurements worldwide. By an 1889 international

发表于:2018-12-24 / 阅读(41) / 评论(0)

Scientific American(一)月

SCIENCE IN THE NEWS - First electronically controlled animal

SCIENCE IN THE NEWS -May 21, 2002: First electronically controlled animals / Study of mothers and their sons / Effects of global warming Broadcast: VOICE ONE: This is Sarah Long. VOICE TWO: And this i

发表于:2019-01-07 / 阅读(64) / 评论(0)

科技之光

VOA慢速英语2010年-SCIENCE IN THE NEWS - 'Organ Printers'

BARBARA KLEIN: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. BOB DOUGHTY: And I'm Bob Doughty. Today, we will tell how technology could help doctors meet demand for transplant organs. We also will tell about a scientific effo

发表于:2019-01-12 / 阅读(77) / 评论(0)

2010年VOA慢速英语(十)月

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