单词：brass alloys
单词：brass alloys 相关文章
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
'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)
我们今天再给大家介绍两个以 top这个字为主的习惯用语。Top这个字有很多解释，在我们今天要讲的两个习惯用语里，top是指：最高，第一流，或者是特别
美国习惯用语
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
初学者听力文摘精选
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
名人励志英语演讲
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
歌词如下： Circle to the left, the old brass wagon, Circle to the left, the old brass wagon, You're the one my darling. Circle to the right, the old brass wagon, Circle to the right, the old brass wagon, You're the one my darling.
英语儿歌274首
Words and Their Stories: Top Brass 词汇典故：Top Brass I'm Susan Clark with the Special English program WORDS AND THEIR STORIES. 我是美国之音慢速英语词汇典故节目主持人苏珊克拉克。 The Italians have an old saying, Il dolc
2012年VOA慢速英语(十一)月
Words and Their Stories: Top Brass I'm Susan Clark with the Special English program WORDS AND THEIR STORIES. 我是美国之音慢速英语词汇典故节目主持人苏珊克拉克。 The Italians have an old saying, Il dolce far niente. The words m
2011年VOA慢速英语(五)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
今天要讲的两个习惯用语都指在某一事务中举足轻重的实质性问题。先要学的习惯用语是： brass tack。Brass是金灿灿的黄铜，实际上黄铜是铜和锌这两种金属的合金，而tack是又小又尖的平头钉。
美国习惯用语
今天我们要学的词是top brass。 Top brass, 是最高级官员的意思，特别是指高级军官。星期二就职庆祝活动结束后，美国新总统奥巴马立即投入工作。 Obama met with his economic team and top brass from the P
英语单词荟萃
今天要讲的两个习惯用语都指在某一事务中举足轻重的实质性问题。先要学的习惯用语是： brass tack。brass是金灿灿的黄铜，实际上黄铜是铜和锌这两种金属的合金，而tack是又小又尖的平头钉。
美国俚语
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
双语有声阅读
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
Brass ring: 发财机会！ 嘿，如果有送上门来的发财机会，您可千万要抓住哦！ 看了这句话，您一定要笑，除非是傻瓜笨蛋，否则没人不知道这个理儿，当然，前提条件是法律允许范围之内。道理
英语口语
Calculationsofthedensityofalloys basedonBernal-typemodelsofthe alloysmetalcomponentagreedfairly wellwiththeexperimentallydetermined valuesfrommeasurementsonalloys (55)consistingofanoblemetaltogether wi
英文语法词汇