[化] 轻铂组金属; 轻铂三素组(指钌铑钯)

Vision of the Future For nearly all of his 86 years, architect Jacque Fresco has been designing cities of the future. Fresco’s structures all derived from a simple form that 1) fascinated him as a b

发表于:2018-11-28 / 阅读(216) / 评论(0) 分类 疯狂英语2004年

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

发表于:2018-12-01 / 阅读(296) / 评论(0) 分类 VOA2003(下)-发展与科学

[00:01.00]Module 2 Developing and Developed Countries [00:09.22]Vocabulary and Listening [00:11.93]Activity 3 Check the meaning of these words [00:16.06]Now listen to the conversation and tick the topics you hear. [02:34.36]Activity 4 Listen again ch

发表于:2018-12-04 / 阅读(283) / 评论(0) 分类 外研社新标准高中英语必修(1-4)

Archimedes was a Greek scientist. He lives in Syracuse nearly 200 years ago. The King of the land wanted to wear a Golden Crown. He gave some gold to a goldsmith to make a suitable crown. After few days, the goldsmith brought the finished crown to th

发表于:2018-12-08 / 阅读(103) / 评论(0) 分类 英汉幽默故事选读

My disposition permeates The room when I walk in a place I'm sorry! By calculation I'm way too much Pretentiously I bitch a bunch But you bought it! I can't exceed my reputation A small town girl with compensation Explorin' all my possibilities Well

发表于:2018-12-08 / 阅读(141) / 评论(0) 分类 格莱美获奖歌曲

第一句: We have been importing and exporting all kinds of metals and minerals for thirty years. 我们经营各种金属和矿石的进出口业务已经有30年了。 A: We have been importing and exporting all kinds of metals and minerals for

发表于:2018-12-26 / 阅读(131) / 评论(0) 分类 天天商务口语

DEVELOPMENT REPORT - Recycling Scrap Metal Into MoneyBy Gary Garriott Broadcast: Monday, July 31, 2006 This is the VOA Special English Development Report. People have been recycling metals for hundred

发表于:2019-01-02 / 阅读(150) / 评论(0) 分类 2006年慢速英语(七)月

Scientists Find Large Amounts of Precious Metals in Wastewater In recent months, stories about sewers getting clogged have made international headlines. For example, a so-called fatberg, a mass of grease and diapers, clogged London's sewers. A new st

发表于:2019-01-03 / 阅读(188) / 评论(0) 分类 2017年VOA慢速英语(十一)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Thars gold in them thar hillsand we may have meteorites to thank. Because it appears that a rain of meteors nearly 4 billion years ago peppered the Earths

发表于:2019-01-08 / 阅读(157) / 评论(0) 分类 Scientific American(九)月

AS IT IS 2015-03-25 Scrap Metal Separation May Become Less Costly 废金属分离技术成本可能会降低 Recycling, or re-using, metals is much less costly than making them from raw materials in the Earth, called ore. But when old cars, household

发表于:2019-01-12 / 阅读(115) / 评论(0) 分类 2015年VOA慢速英语(三)月

Gold, Oil Prices Up as Investors Seek Safe Haven 投资者寻求避险:黄金、石油价格上涨 NEW YORK The up-and-down prices of oil and gold mirror the unsettled world situation, and both reflect the economic squeeze most nations currently face

发表于:2019-01-14 / 阅读(133) / 评论(0) 分类 VOA标准英语2016年(三月)

MARY LOUISE KELLY, HOST: For the first time, scientists have seen the violent collision of two neutron stars. They've watched as heavy elements like gold, platinum and uranium were forged. This cosmic smashup is being hailed as one of the biggest eve

发表于:2019-01-16 / 阅读(141) / 评论(0) 分类 2017年NPR美国国家公共电台10月

The fumes of burning sulphur will bleach straw, silk, and other things, and make them white and clean. These fumes are also useful for killing the germs which cause fevers and other diseases. 燃烧的硫磺冒出的烟,可以漂白稻草、丝绸和

发表于:2019-01-17 / 阅读(162) / 评论(0) 分类 英国学生科学读本

Finance and Economics;The London Metal Exchange;Metal cashing;Who wants to buy the LME? 财经;伦敦金属交易所;金属兑现;谁会买下LME? The sight of a pack of adults shouting at each other is rarely edifying. Unless, that is,

发表于:2019-01-27 / 阅读(144) / 评论(0) 分类 经济学人财经系列

当获悉某人晋升或是在事业上取得巨大成就时,应该打个电话或是写封便签祝贺。这种友好往来对建立和巩固友好的商业合作关系大有益处。 Here are some principles that congratulatory letters follow: 1.

发表于:2019-02-04 / 阅读(117) / 评论(0) 分类 实用英语

The owner of the London Metal Exchange aims to target Chinese commodity traders concerned by speculative excesses on the countrys domestic bourses, with plans to establish a physical metals trading platform in mainland China next year. 伦敦金属交易

发表于:2019-02-05 / 阅读(131) / 评论(0) 分类 英语新闻

Lesson 37 All About A Penny 第37课 关于便士 When I was a little boy, pennies, and halfpennies, and farthings were made of pure copper. But copper is too soft a metal to stand the rubbing which coins get. So these old pennies soon became so smoo

发表于:2019-02-07 / 阅读(130) / 评论(0) 分类 英国学生科学读本

South African Platinum Producer Fires 12,000 Workers JOHANNESBURG The worlds biggest platinum producer has fired 12,000 workers in South Africa after they engaged in an illegal strike, company officials said Friday. The nations main mineworkers' unio

发表于:2019-02-13 / 阅读(173) / 评论(0) 分类 英语新闻

Metal, heal thyself 金属,自己愈合吧 Materials science: Researchers have devised an ingenious way for the damaged surfaces of metals to repair themselves when they come to harm 材料科学:研究人员构想出了一种新颖独特的方法,

发表于:2019-02-17 / 阅读(148) / 评论(0) 分类 经济学人综合

Vale, the worlds biggest iron ore miner, and Fortescue Metals Group have forged an agreement aimed at boosting their competitiveness in the key market of China, and giving the Brazilian company a foothold in the ore-rich Australian Pilbara region. 世界

发表于:2019-02-18 / 阅读(113) / 评论(0) 分类 英语新闻
学英语单词
acetyl coenzyme A
angusticlave
anticollectivist
Armstrong
artificial parchment
block check procedure
broadleaf tree
buntal
cases with bands off
chromatophorotropic hormone
chromophobous
cladophoropsis javanica
conditional most-favored-nation treatment
cream-skimmings
cryosequestration
day aspect
deistic evolution
despouse
devaluations
diglycosylated
disfrocked
dulia
duplex bridge telegraph
EIV
electronic scanning color correction
Erb-Duchenne paralysis
expiratory dyspnea
fairhandedness
false execution
family megalonychidaes
fish-processing
flacket
Fleury's algorithm
forced-flow once-through steam generator
forward error correcting system
FreeDOS
goal line
goodworks
heahs
Indigenous People's Day
interior platform
iron and iron carbide alloy
kakabeak
key-seating milling machine
lissosphincter
litholine
longwave infrared (lwir)
lost current
mendicity
metamorphosical
molecular engineering
Morteau
Murray Fracture Zone
nbd
neck-in
needle woods
nervosism
non-SNA terminal
numeric-coded character set
obnoxities
Passendale
periotron
petroleum fraction
piled box type substructure
posting reference
posttemporal
Prunus campanulata
puppet animation
radar digitizer
requirement requirement engineering
return to work
Rhodotypus
ricins
rod gauge
salvins
second auction
secrist
sedentary polychaete
Silesians
slop padding
spinner type plow
spiral-classifier
square error
standard output device
subcalcaneal bursitis
subslices
supertitled
sympl
tension reducing mill
the Lamb
Tongta
trade information
turbosupercharged
unreversing
up tick rule
USW (uranium separative work)
valve reseating tool
verificate
Vernoux-en-Vivarais
wash bin
young fellow