单词：sodium-free lithium metal
单词：sodium-free lithium metal 相关文章
By Gary Garriott Broadcast: November 3, 2003 This is Steve Ember with the VOA Special English Development Report. People have been recycling metals for hundreds of years. Today, re-using metal waste o
VOA2003（下）-发展与科学
本杰明接到雪莉的电话，匆匆赶来家电商场，最终雪莉买了那款她钟情的微波炉了吗？ Listen Read Learn Benjamin: A microwave oven? Shirley: Yes, it's really two-pence colored. Benjamin: Okay, honey, we already have two. There is no more space for a third on
王强口语 第二册
Hi, it's the All in the Mind podcast, I'm Lynne Malcolm. Today we go to Ireland to hear one man's story of living with bipolar disorder. Ian is in his mid-fifties, and despite his illness he has an enviable, almost idyllic life with his wife and thre
听一分钟英文-I
Most works of art - paintings, sculptures, artistic jewelry - are created for a collector or patrons who visit a gallery. The artist makes something, and someone else buys it and takes it home. Others create large public art - sculptures and statues
VOA标准英语2010年(九)月
SCOTT SIMON, HOST: One of the hottest gifts of the season is a little too hot, hot enough to catch fire. Hoverboards have been burning up because of problems with their lithium-ion batteries. And lithium-ion batteries are in a lot of things these day
英语语言学习
American inventor John Goodenough first started working on battery technology more than 40 years ago. Goodenough actually co-invented lithium-ion batteries in 1980. This eventually led to a revolution in the electronics industry because those devices
2017年VOA慢速英语(五)月
Parts of Chile are facing a growing water crisis. The Reuters news agency reports the government is taking steps to protect the countrys water supplies from mining operations. But for many years, the Chilean government approved water extraction right
2018年VOA慢速英语(九)月
By Roger Hsu Mephis, Tennessee 17 August 2006 watch Museum report The National Ornamental Metal Museum in Memphis is devoted to the conservation and advancement of metalwork. It is a place where metal smiths become synonymous with artists and where
2006年VOA标准英语（八月）
[全屏观看] 点击右键- 另存为 可保存这个Flash影片 Description: Metal Sonic is flying through space and comes to an asteroid field, you need to help him blast his way through without getting hit or its game over. Instructions: Move: Up
Daily Free Games
The Springfree Trampoline won the US Childrens Product of the Year Award this year. Springfree was designed by Professor Keith Alexander of Canterbury University Mechanical Engineering department. He designed it because he wanted a safe trampoline fo
新西兰英语
Staying with the precious metal, and Chinas largest gold company says the country will surpass India to become the top consumer of gold in the world. In the first three quarters of this year, China produced 284 tons of the yellow metal, a nine percen
英语演讲
Batteries That Last Forever Could Be Near 科学家研发可永久循环使用电池 We all have daily problems with technology, but how many of us can fix them? Mya Le Thai is a scientist studying at the University of California, Irvine. She recentl
2016年VOA慢速英语(五)月
DAVID GREENE, HOST: So every time you weigh something, whether it's coffee or bananas - I'm not sure what you're weighing - you might be doing it in pounds - well, whatever you're doing, you're unknowingly relying on a global system of measurement th
2018年NPR美国国家公共电台11月
Aircraft maker Boeing says commercial flights of the grounded 787 Dreamliner jets could resume within weeks. We are going to be dependent upon, as we move through the certification process, to determine when we actually get back in the air in terms o
英闻天下
As China Molybdenum announced it was buying one of Africas largest copper mines earlier this month one thing was soon clear: the acquisition was about far more than the red metal. 随着洛阳钼业(China Molybdenum)本月早些时候宣布正在收购
英语新闻
Chances are, you plug in your phone before you go to bed at night, thinking it's best to greet the morning with a fully charged device. 晚上临睡前，你可能会给手机充上电，想着第二天早上看到一部电量满格的手机。 Is th
英语新闻
Voice 1 Hello. Im Rachel Hobson. Voice 2 And Im Mike Procter. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 I was in the tent
环球英语 Spotlight
Metallic，队如其名，是世界首屈一指的重金属乐队，比Bon Jovi更有名，比枪花更严肃。Metallica在不断的创造着新的音乐元素：Thrash Metal、Death Metal、Speed Metal、Black Metal，他们不甘心看着重金属摇
英文摇滚歌曲
本期内容： Europe gave the world some of its top automakers, but it's losing out to China in the race to define the industry's future. China is the driving force in the business of electric vehicle batteries, which European leaders see as vital
夏说英语新闻晨读