单词:extraction of magnesium from sea water
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[00:03.20]Unit 7 The Sea Lesson 3 The Sea World [00:07.92]UNDERwater WORLD [00:10.16]The Best Plance To See Sea Creatures [00:13.62]Polar World [00:15.75]We have polar bears and a real iceberg too! [00:19.45]You can only see a small part of it [00:21
15.No Signposts in the Sea In the dining-saloon I sit at a table with three other men; Laura sits some way off with a married couple and their daughter. I can observe her without her knowing, and this gives me pleasure, for it is as in a moving pictu
It was still dark when Kate woke them. Dress warmly, she said. The Aldens hurried into their jeans and sweatshirts. They tied their jackets around their waists. Fruit, juice, and toast awaited them. Kate filled a large thermos. Hot cocoa, she said. I
New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc
A salty breeze blew into the tree house. Seagullsscreeched overhead. Jack and Annie looked out thetree house window. They were high in the branches of a gnarled oldtree. The tree was on a sea cliff beneath snowcappedmountains. The mountains overlooke
THIS IS AMERICA - Playing in the Sun and Sea at Martha's Vineyard and Nantucket BARBARA KLEIN: Welcome to THIS IS AMERICA in VOA Special English. I'm Barbara Klein. This week on our program, we tell you about two islands in Massachusetts, in the New
Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Robin Basselin. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 Over 60% of our planet is covere
Voice 1 Welcome to Spotlight. Im Anne Muir. Voice 2 And Im Bruce Gulland. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 Aurlie Spadone knows all about
At the Edge of the Sea The shore is an ancient world, for as long as there has been an earth and se a there has been this place of the meeting of land and water. Yet it is a world that keeps alive the sense of continuing creation and of the relentle
Mars Rover Finds Evidence of Ancient Sea David McAlary The U.S. space agency NASA says Mars once had a shallow, salty sea that could have supported life. The evidence has come from chemical and physic
By Mil Arcega Washington 25 May 2007 Technology and high gasoline prices are helping to coax hard-to-extract oil from California's oil fields. Production at some of the state's older oil fields is expected to dry up in about 25 years, but Chevron say
Eating when stressed can be a bad habit when the food of choice is a candy bar or bag of chips. Try these healthy foods that are actually proven to lower stress levels. 当有压力的时候如果选择吃糖果或者薯条对健康是有坏处的。试
Shanghai Takes Measures against Rising Sea Levels Zhang Zhenyu, of the Shanghai Flood Risk Information Center spokesperson, said the seawalls virtually encircle half of the city. These are all the sea walls we have built, including from Hangzhou Bay
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
BBC News Scientists think they have found a smart way to constrain carbon dioxide emissions - just turn them to stone. The researchers report an experiment in Iceland where they have pumped CO2 and water underground into volcanic rock. Reactions with
1. It is very hydrating. 盈润保湿。 Celery is high in water content (95% water) and electrolytes, which are vital for proper hydration and cellular functions. For a super re-hydrating drink (e.g. after a long flight or after having food poisonin
First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。
Part 6 The Old Man and the Sea 第六部分 老人与海 The sun rose thinly from the sea and the old man could see the other boats, low on the water and well in toward the shore, spread out across the current. Then the sun was brighter and the glare
Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Robin Basselin. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 Over 60% of our planet is covere
Voice 1 Welcome to Spotlight. Im Anne Muir. Voice 2 And Im Bruce Gulland. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 Aurlie Spadone knows all about