单词：palladium-silver alloys
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What Makes White Gold White? Many people associate the metal gold with the color gold. But, some gold jewelry is not golden at all: its white. 图片1 Golden Color Gold is one of the heaviest and softest metals. Pure gold, called 24-carat gold, is so
英语听力文摘 English Digest
Silver Bells silver bells, silver bells it's christmas time in the city ring-a-ling, hear them ring soon it will be christmas day city sidewalks, busy sidewalks dressed in holiday style in the air there's a feeling of christmas children laughing, peo
英文圣诞歌曲
'Metal Muscles' Flex a New Bionic Hand 德国科学家发明新的仿生手 Artificial limbs, including the most complex of them the human hand are getting more life-like and useful due to constant advances in tiny hydraulic, pneumatic and electric m
VOA标准英语2015年(七月)
Many people associate the metal gold with the color gold. But, some gold jewelry is not golden at all: its white. 很多人都认为金子就应该是金色。但一些黄金首饰的颜色并不是金色，而是白色。 Golden Color 金色 Gold is
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That budget now stands at $5,400 million a yeara staggering sum, though somewhat less than we pay for cigarettes and cigars every year. Space expenditures will soon rise some more, from 40 cents per person per week to more than 50 cents a week for ev
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What Makes White Gold White? Many people associate the metal gold with the color gold. But, some gold jewelry is not golden at all: its white. Golden Color Gold is one of the heaviest and softest metals. Pure gold, called 24-carat gold, is so soft th
英语听力文摘 English Digest
在这次节目里我们要给大家讲两个习惯用语。一个跟银子，就是英文里的silver这个字有关。另一个是以铅，就是lead这个字为主。 我们现在来讲第一个。To be handed something on a silver platter. To be
美国习惯用语
今天我们要学的词是silver lining。 Silver lining, 是指不幸中的万幸。英语里有一种说法是， Every cloud has a silver lining, 朵朵乌云衬白底，意思是不幸中总会有值得欣慰的地方。 今年美国高中毕业生
英语单词荟萃
Ray J在美国可以称得上是顶尖的音乐制作人。这首《Sexy Can I》是被号称是Ray J职业里程碑的作品。这首歌的确是好听，不愁不流行，因为当今欧美乐坛中，什么流行这首歌就有什么。上脑如Ne-Yo的旋律，Ray J非常标准的RB男声，加上Young Berg没啥特色的Rap，是那种听了开
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This is Scientific Americans 60-Second Science, Im Steve Mirsky. Got a minute? The 2010 Nobel Prize in Chemistry goes to the University of Delawares Richard Heck, Purdues Ei-ichi Negishi and Hokkaido Universitys Akira Suzuki for their work in develop
Scientific American(十)月
Copper Metal Kills Viruses on Contact 铜能杀死细菌和病毒 Even in the world of medicine, what is old is new again. 医药界也刮起了复古风。 Thousands of years ago, Egyptians used it to sterilize drinking water. Ancient Romans, Aztecs
2016年VOA慢速英语(二)月
Various stages of cartilage growth on scaffold. The final image on the right shows naturally forming cartilage for comparison. These replacement joints can be made of combinations of metal alloys, plastic and ceramic, but new research shows that it m
VOA标准英语2010年(八)月
Palladium雅典娜的神像PalladiumWhen Ilus had first built his new seat,the city of Troy, he prayed Zeus to show some sign of blessing for it. His prayer was heard,and a wooden image of Pallas- A-thena fell from heaven to within the walls of the c
英语美文
Congratulations, you've arrived on the hottest surface in the solar system. Here, the official temperature is eight hundred seventy degrees Fahrenheit. Day or night, equator or pole, the searing heat never varies more than a few degrees, and thats wh
自然百科2012年
Nitinol Nitinol is one of the most extraordinary metals to be discovered this century: A simple alloy of nickel and titanium, nitinol has some perplexing properties. A metal with a memory, it can be made to remember any shape into which it is fashion
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ArcelorMittal will launch a new high-strength automotive steel later this year, throwing down the gauntlet to its rivals in the race to make cars lighter. 安赛乐米塔尔(ArcelorMittal)将于今年晚些时候发布一款新型高强度汽车用钢，
英语新闻
Calculationsofthedensityofalloys basedonBernal-typemodelsofthe alloysmetalcomponentagreedfairly wellwiththeexperimentallydetermined valuesfrommeasurementsonalloys (55)consistingofanoblemetaltogether wi
英文语法词汇
1. odyssey /ˈɔdɪsi:/ -- any long series of wanderings or travels Odyssey是有关奥德修斯在特洛伊战争后十年流浪返乡的史诗。《奥德赛》是古希腊最重要的两部史诗之一（另一部是《伊利亚特》），相传为
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