无溶氧水

Water Cycle 水循环 All the oceans on earth are salty, while inland water is typically fresh. How does water become salty? We'll answer a listener's question -- today on Earth and Sky. DB: This is Earth and Sky. We recently visited the Austin Childr

发表于:2018-12-07 / 阅读(215) / 评论(0) 分类 (科普英语)Earth and Sky

[ti:UNIT 4 Look into Science! Lesson 30: Keep the Candle Burning!] [0:00.733]UNIT 4 第四单元 [0:02.636]Look into Science! 走进科学! [0:05.638]Lesson 30: 第30课 [0:06.956]Keep the Candle Burning! 让蜡烛燃烧! [0:09.491]THINK ABOUT IT

发表于:2018-12-13 / 阅读(233) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. The Chesapeake Bay could get helped by a new antipollution expert: farmed oysters. For decades, the Chesapeake has been plagued by excess nutrients, such

发表于:2018-12-24 / 阅读(172) / 评论(0) 分类 Scientific American(一)月

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(157) / 评论(0) 分类 Scientific American(六)月

星级典句: 第一句:After January 1st, our partnership will be dissolved. 元月1日后,我公司解散。 A: What's the meeting about? 会议上说了什么? B: Bad news. 坏消息。 A: What happened? 怎么了? B : After January 1st,

发表于:2018-12-26 / 阅读(144) / 评论(0) 分类 天天商务口语

Todd: OK, Michael, you are into spear fishing! Michael: Yes, I enjoy going spear fishing Todd: OK. Can you talk about that a bit. Michael: Yeah, sure. Spear fishing basically is a sport that you dive under the wate with the aid of flippers, wet suit

发表于:2019-01-02 / 阅读(163) / 评论(0) 分类 英语访谈对话

EXPLORATIONS - 'Houston, We've Had a Problem Here': The Survival of Apollo 13By Marilyn Rice Christiano and directed by Paul Thompson Broadcast: Wednesday, August 30, 2006 ANNOUNCER: EXPLORATIONS -- a

发表于:2019-01-02 / 阅读(131) / 评论(0) 分类 2006年慢速英语(八)月

Well, hearing that Odyssey had found subsurface water on Mars was enormously exciting for somebody who is involved in planning to send humans to Mars. Water has a number of important uses for us. At t

发表于:2019-01-02 / 阅读(201) / 评论(0) 分类 火星生命

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

发表于:2019-01-04 / 阅读(204) / 评论(0) 分类 Scientific American(八)月

One main goal in the renewable energy field is to find an efficient, inexpensive way to split water into hydrogen and oxygen. The hydrogen could then be used as a fuel source for vehicles or fuel cells. Typically, an electric current breaks the water

发表于:2019-01-08 / 阅读(205) / 评论(0) 分类 Scientific American(四)月

UNIT 4 [00:03.08]Lessons 25~32 [00:08.05]Look into Science! [00:11.89]Lesson 25: [00:16.64]Keep the Candle Burning!Science is so interesting! [00:23.72]I'm sure you'll like this experiment! [00:28.68]When you do this experiment,you will learn somethi

发表于:2019-01-09 / 阅读(375) / 评论(0) 分类 河北加拿大版初中英语

Mars 火星 Mars is a planet. 火星是行星。 It is next to the Earth. 它紧邻地球。 Its size is about one fourth of the Earth. 它约有四分之一个地球大。 Mars is not far from the Earth, but the environment is very different. 火星离

发表于:2019-01-10 / 阅读(147) / 评论(0) 分类 与美国小学生一起学英文第5册

Plankton More Important than Scientists Thought 浮游生物比科学家认为的重要的多 For years, most people thought of small organisms called plankton as food for whales and other large sea animals. But a four-year long study discovered that

发表于:2019-01-12 / 阅读(146) / 评论(0) 分类 2015年VOA慢速英语(六)月

商务英语中最实用的三十个句子 1. We inform you that the partnership existing between us in the business of wool has this day been dissolved by mutual consent. 2. Notice is hereby given that the copartnership which has existed between Mr.

发表于:2019-01-17 / 阅读(203) / 评论(0) 分类 阅读空间

Todd: OK, Michael, you are into spear fishing! Michael: Yes, I enjoy going spear fishing Todd: OK. Can you talk about that a bit. Michael: Yeah, sure. Spear fishing basically is a sport that you dive under the wate with the aid of flippers, wet suit

发表于:2019-01-20 / 阅读(157) / 评论(0) 分类 原版英语对话1000个

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(178) / 评论(0) 分类 自然百科2009年

German Car Manufacturer Audi Creates Fuel From Air And Water 奥迪用空气和水合成新燃料 Creating an alternative green or carbon neutral fuel to replace gasoline has been the holy grail for scientists for many years. However, while there has

发表于:2019-02-05 / 阅读(159) / 评论(0) 分类 阅读空间

通知书 合并 下列署名人, 谨此通知各位顾客, 自即日起以前以F.与T.命名的两公司合并为B.公司,继续营业。 We the undersigned, herewith inform all our esteemed correspondents that the two firms which have carried on b

发表于:2019-02-06 / 阅读(186) / 评论(0) 分类 实用英语

1. We inform you that the partnership existing between us in the business of wool has this day been dissolved by mutual consent. 2. Notice is hereby given that the copartnership which has existed between Mr. Black and Mr. Brown under the style of Bla

发表于:2019-02-06 / 阅读(160) / 评论(0) 分类 实用英语

CAIRO, July 8 (Xinhua) -- Egyptian President Mohamed Morsi on Sunday ordered the dissolved parliament to resume work, state media reported. According to the presidential decree, new parliamentary elections will be held within 60 days after the countr

发表于:2019-02-08 / 阅读(128) / 评论(0) 分类 英语新闻
学英语单词
AAMBV
actual time of departure
alarm bolt jumper
albrethsen
alecko
Allium megalobulbon
ammonium alum
andamen
ashirs
auxiliary angle
back-bent occlusion
being a monitor
betanaphthyl amine
bilinear process
Black,Joseph
blanket of uranium
boianu mare
cathodic spattering
catillaria limosescens
Chebula
chinese national
chrysobothris infranitens
Cinnamomum brevipedunculatum
computerized experiment instruction
congery
contemptable
core memory reentrant routine
cosmopoietic
cytathione
designated system management group
diamond deposit
dinurus longissimus
distance between stiffening rings
Dit I.
don't drink and drive
dwelles
effective line differential
eliss
ERL (emergency reference level)
exegeses
exertion of
failure cause
fiber glass (reinforced) plastic flange
germanium chloroform
gousiekte
hatch trunk
himselve
hyanniss
hydrouria
iatrogenies
inter-influence
invariance method
isosthenuria
Keitel, Wilhelm
knock in the head
lanthanide elements
liquor acidi borici
loosely
megagram force meter
mesotropic
mill tackle
mosquito fly
nippped
open-hearth cinder
osphresiomete
ownership of mines
parred
Peňascosa
plate impedance
pollen rain
Ponazyrevo
portable lamp bulb
predicted values
prolific well
published document
radipraxy
re-fallow
refrigerating volume
revector
saltion
seniculture
Senna obtusifolia
silo-based missile
spray fault
static perimeter
Stella Polaris
strob-
tank testing
tea cards
Tobré
tomato gall
totaras
tricomponent
two-speed adapter lever
underconforming
ungoodly
unriddleable
vigils
water emulsion sludges
wildland fire
woloszyn
Yellowknifers