铸铜合金

英语听力文摘 English Digest 664 白金为何是白色的

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

发表于:2018-12-05 / 阅读(122) / 评论(0)

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六人行FriendsMP3 6-4

The One Where Joey Loses His Insurance -------------------------------------------------------------------------------- Written by: Andrew Reich I抦 here to audition for (Groans) man. Casting Directo

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阶梯听力天天练:手

【阶梯英文】 hand his own hand in his own hand a man’s fortune is in his own hand Chiefly the mould of a man’s fortune is in his own hand。【阶梯中文】手他自己手中在他自己

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阶梯听力天天练

VOA常速英语2015--德国科学家发明新的仿生手

'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

发表于:2018-12-16 / 阅读(65) / 评论(0)

VOA标准英语2015年(七月)

英文书摘精选 What Makes White Gold White?白金为何是白色的?

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

发表于:2018-12-28 / 阅读(88) / 评论(0)

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名人励志英语演讲第48期:我们选择登月(9)

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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名人励志英语演讲

英语听力文摘 English Digest 620、白金为何是白色的？

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

发表于:2018-12-31 / 阅读(107) / 评论(0)

英语听力文摘 English Digest

六人行FriendsMP3 7-19

The One With Ross and Monica抯 Cousin -------------------------------------------------------------------------------- Written by: Andrew Reich I have nothing to hide. (He drops his pants and stands,

发表于:2019-01-01 / 阅读(134) / 评论(0)

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个人情况： Name: ******** Sex: Male/Female Date of birth:June 2,1975 Address: ***** Marital Status: Single/Married Post Code: 100001 Height: 1.70M Weight: 50 kg Health: Excellent E-mail Address:

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VOA慢速英语2016 铜能杀死细菌和病毒

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

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VOA标准英语2010年-Regrowing Worn Joints Using Patient St

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

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VOA标准英语2010年(八)月

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ARI SHAPIRO, HOST: One of the ingredients a successful Broadway show needs is a talented cast. That starts with talented casting directors, the people who can see a Tony-winning star in the making, say, when a performer walks into an audition as a co

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KELLY MCEVERS, HOST: The next story started when a director and producer from a tiny theater in Portland, Ore., posted a message on Facebook. He was outraged that the estate of Edward Albee wouldn't grant him rights to produce Who's Afraid Of Virgini

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2017年NPR美国国家公共电台6月

2018年CRI 3D printing of casting pattern leads the industrial transformation in Ningxia

There are more than 26 thousands casting companies in China, accounting for half of all the global manufacturers of casting products. But the traditional method of handmaking castings is heavily reliant on human resources and energy, and can produce

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2018CRI中国国际广播电台

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slipping down a slide i did enjoy the ride don't know what to decide you lied to me you looked me in the eye it took me by surprise now are you gratified you cried to me la, la, la, la, la don't turn around i'm sick and i'm tired of your face don't

发表于:2019-02-02 / 阅读(211) / 评论(0)

Avril Lavigne(艾薇儿)

英语听力：自然百科金星和水星旅行指南 Venus and Mercury-16

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

发表于:2019-02-15 / 阅读(158) / 评论(0)

自然百科2012年

双语有声阅读：镍钛合金

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

发表于:2019-02-17 / 阅读(127) / 评论(0)

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安赛乐米塔尔将发布新型高强度汽车用钢

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，

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animator cartoonist 动画画家 apprentice editor 见习编辑 art department assistant 美术部门助理 art department coordinator 美术部门协调人 art designer 美术设计人员 art director 艺术指导，美工师 assistant accountant 助理

发表于:2019-02-18 / 阅读(106) / 评论(0)

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Calculationsofthedensityofalloys basedonBernal-typemodelsofthe alloysmetalcomponentagreedfairly wellwiththeexperimentallydetermined valuesfrommeasurementsonalloys (55)consistingofanoblemetaltogether wi

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