标签：aluminum 相关文章
38 Topaz Topaz is a hard, transparent mineral. It is a compound of aluminum, silica, and fluorine. Gem topaz is valuable. Jewelers call this variety of the stone precious topaz. The best-known precious topaz gems range in color from rich yellow to l
新概念优美背诵短文50篇
Victoria and the South Australia are in front of another scrod today, Fire fighters are on higher alert as the temperatures expect to soar to around 40 degrees in some areas. One hundred fires have been burning across the Victoria and dozens of peopl
澳洲ABC新闻快递2012年
This is AP News Minute. President Donald Trump said he wants to see free, fair and reciprocal trade with Japan as he sat down with the country's Prime Minister Shinzo Abe at Trump's Mar-a-Lago estate. Officials signaled Trump is open to considering e
美联社新闻一分钟2018(四)月
This is the VOA Special English Development Report. Clay is found almost everywhere in the world. It is formed by the action of wind and water on rocks over thousands of years. The rocks change in both chemical and physical ways. Chemically, element
VOA慢速英语2008年（八）月
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
China said it's rolling out new tariffs on meat, fruit and other products from the United States as retaliation against taxes approved by U.S. President Donald Trump on imported steel and aluminum. The Chinese finance ministry said in a statement tha
2018CRI中国国际广播电台
To wrap something is to put something around it, usually to keep it cold, or to keep it warm, or to keep it fresh when we are talking about food. To wrap something就是包装某物，通常是让某物冷藏或保温，或在提到食物的时候是用
ESL杰夫的一天
alkali碱 alloy结合体 aluminum铝 ajar半开的 bleach漂白 catalyst催化剂 compound化合物 crystal水晶 combustible易燃的 distill提炼 electrician电工 erase抹掉 flask烧瓶 fuse融合 hydrogen氢气 insulate隔热 intrinsic内在的
80天攻克雅思核心词汇
This is AP News Minute. Top republicans are urging President Trump to back away from his plan to impose trade tariffs. Trump is threatening to put the tariffs on imported steel and aluminum, including imports from Canada and Mexico. South Korea says
美联社新闻一分钟2018(三)月
India seems to excel at making things smaller and cheaper. The $2,500 car and the $35 computer are just two of the country's latest innovations. Now, India increasingly is focused on low-cost solar technology. The front lines of that effort are seen
VOA标准英语2010年(十)月
An official in Hungary says a toxic sludge spill, which has killed four people, has reached the edge of Europe's second longest river, the Danube. Officials say the sludge has reached the Danube, one of Europe's longest rivers. An official also told
VOA标准英语2010年(十)月
Scientists Create Blackest Material Ever Of all the black things in the universe only the infamous black holes are so black that not even a tiny amount of light can bounce back. But scientists have managed to create material almost as black, and it h
VOA标准英语2014年(七月)
MARY LOUISE KELLY, HOST: Now, as we just heard, the G-7 summit comes as President Trump has been pressuring other countries to make big trade concessions. As NPR's Jim Zarroli reports, the resistance he's encountering underscores how isolated the U.S
2018年NPR美国国家公共电台6月
India seems to excel at making things smaller and cheaper. The $2,500 car and the $35 computer are just two of the country's latest innovations. Now, India increasingly is focused on low-cost solar technology. The front lines of that effort are seen
VOA双语新闻 2010年11月
The Australian sharemakert managed to closed higher after a fairly flat day on Wall Street overnight. The All Ordinaries Index added a tenth of a per cent, as did the ASX 200 index. Across the region, it's a mixed session. The Nikkei in Tokyo has rev
澳洲ABC新闻快递2013年
Good morning, everyone. Mining firm Glencore has said it's operationally and financially robust after questions were raised about its financial future. On Monday, its shares dived 30% after a note from analysts said its share value could be eliminate
澳洲ABC新闻快递2015年
A Nobel Prize-winning U.S. economist says the U.S. protectionist measures against China would harm its own economy and undermine a rule-based international trading system. Joseph Stiglitz spelt out his opinion in New York on Thursday at a gathering o
2018CRI中国国际广播电台
I think we have dangers in these kinds of policies. The Smoot-Hawley Tariff Act, prior to the Great Depression, is considered one of the causes of the Great Depression that started in 1929. So, if we're to follow these policies of tariffs, this is go
2018CRI中国国际广播电台
but perhaps you are hoping to remotely touch someone you'll never meet 有可能 你会同遥远的未曾相识的人产生联系。 the Spirit, Opportunity and Curiosity rovers which are on Mars 勇气号 机遇号 好奇号火星探测器。 are ea
公众人物毕业演讲
Just after midnight on August 5, 1930, Neil Armstrong was born in the Ohio farmhouse that belonged to his grandparents. Neil was the oldest of Stephen and Viola Armstrongs three children. He had a younger sister named June and a younger brother named
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