[化] 小冠花苷
[医] 小冠花素

AGRICULTURE REPORT - Composting

AGRICULTURE REPORT -January 8, 2002: Composting By Gary Garriott This is the VOA Special English AGRICULTURE REPORT. Many farmers around the world are composting to improve their soil so they can prod

发表于:2018-12-07 / 阅读(27) / 评论(0)

农业与发展

2006年VOA标准英语-Growing Problem of E-Waste a Global Concer

By Crystal Park Washington, DC 28 February 2006 watch eWaste report Constant innovations and breakthroughs in technology are helping the world. But there's a downside. The amount of electronic waste,

发表于:2018-12-16 / 阅读(96) / 评论(0)

2006年VOA标准英语（二月）

SSS 2011-10-05

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.

发表于:2019-01-08 / 阅读(72) / 评论(0)

Scientific American(十)月

VOA标准英语2009年-Website of the Week — SnowCrystals.c

An online guide to snow and other ice phenomena Art Chimes | Washington, DC 18 December 2009 Photo: SnowCrystals.com Time again for our Website of the Week, when we showcase interesting and innovative online destinations. For those of us in the north

发表于:2019-01-13 / 阅读(61) / 评论(0)

VOA标准英语2009年(十二月)

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(80) / 评论(0)

2006年慢速英语（一）月

人生的结晶

Chemistry on an experiment called the crystal. First the formation of chemical substances dissolved in water solution, solution Sheng Yu evaporating dish, the evaporating dish placed in steel tripod, the following alcohol lamp heating, control-relate

发表于:2019-02-21 / 阅读(40) / 评论(0)

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5-alpha-Dihydrotestosterone

aeronautical fixed service

Aganosma navaillei

Agriochoerus

amphiroa foliacea

antipolarity (ito & crawford 1965)

brushless torque motor