液态金属传热系统

26 Renting an Apartment GLOSSARY apartment manager a person whose job is to take care of problems in an apartment building, collect the rent, and find peopleto live in the building * When our toilet stopped working, we called the apartment manager. v

发表于:2018-12-03 / 阅读(103) / 评论(0) 分类 2009年ESL之日常生活

Why refrigerators hum? Why refrigerators hum,on toay's moment of science.On the recent program we have discussed how fluorocarboncoolant cools your food by coming to a boil in coils hidden in your fridge. How is this possible? When you boil water o

发表于:2018-12-31 / 阅读(70) / 评论(0) 分类 英语听力文摘 English Digest

The Rolling Boil That Cools Your Food When you think of something boiling, you probably picture a pot on the stove, but theres another kitchen appliance that brings liquid to a boil, not to heat food, but cool it. It sounds crazy, but household refri

发表于:2018-12-31 / 阅读(81) / 评论(0) 分类 英语听力文摘 English Digest

By Roger Hsu Mephis, Tennessee 17 August 2006 watch Museum report The National Ornamental Metal Museum in Memphis is devoted to the conservation and advancement of metalwork. It is a place where metal smiths become synonymous with artists and where

发表于:2019-01-06 / 阅读(166) / 评论(0) 分类 2006年VOA标准英语(八月)

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

发表于:2019-01-08 / 阅读(135) / 评论(0) 分类 Scientific American(四)月

[全屏观看] 点击右键- 另存为 可保存这个Flash影片 Description: Metal Sonic is flying through space and comes to an asteroid field, you need to help him blast his way through without getting hit or its game over. Instructions: Move: Up

发表于:2019-01-08 / 阅读(167) / 评论(0) 分类 Daily Free Games

Staying with the precious metal, and Chinas largest gold company says the country will surpass India to become the top consumer of gold in the world. In the first three quarters of this year, China produced 284 tons of the yellow metal, a nine percen

发表于:2019-01-11 / 阅读(100) / 评论(0) 分类 英语演讲

This is the VOA Special English Development Report. Dye can bring a little color to life. Most clothing is colored with dyes. Modern, manufactured dyes can be costly. Natural dyes from plant and animal products have been used since ancient times. So

发表于:2019-01-11 / 阅读(83) / 评论(0) 分类 VOA慢速英语2008年(十一)月

This is the VOA Special English Development Report. Solar water heaters are devices that use energy from the sun to heat water. Solar water heating is used around the world. An example of a rooftop solar water heater being built in South Africa The

发表于:2019-01-11 / 阅读(98) / 评论(0) 分类 VOA慢速英语2009年(四)月

This is the VOA Special English Development Report. Dye can bring a little color to life. Most clothing is colored with dyes. Modern, manufactured dyes can be costly. Natural dyes from plant and animal products have been used since ancient times. So

发表于:2019-01-11 / 阅读(81) / 评论(0) 分类 VOA慢速英语2007年(五)月

This is the VOA Special English Development Report. Dye can bring a little color to life. Most clothing is colored with dyes. Modern, manufactured dyes can be costly. Natural dyes from plant and animal products have been used since ancient times. So

发表于:2019-01-11 / 阅读(88) / 评论(0) 分类 2010年VOA慢速英语(八)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(95) / 评论(0) 分类 英国学生科学读本

Lesson 35 Getting up Steam 第35课 蒸汽往上冒! Do you want to know what steam is? Let us get a lump of ice, or a snow-ball, and place it in a saucer in a warm room. It soon melts, and then the saucer is half full of water. If we leave the sau

发表于:2019-02-07 / 阅读(66) / 评论(0) 分类 英国学生科学读本

We might not be alone in the universe. Actually, it may be confirmed as a very crowded place by new computer models developed to help identify habitable planets. Estimates of places that can sustain life have been based on the likelihood of them havi

发表于:2019-02-13 / 阅读(48) / 评论(0) 分类 英语听力精选进阶版

Rather too well, Littlefinger said. I still carry a token of his esteem. Did Brandon speak of me too? 我跟他很熟。小指头道,至今身上都还留着他的纪念。布兰登也提起过我? Often, and with some heat, Ned said, hoping that

发表于:2019-02-17 / 阅读(129) / 评论(0) 分类 冰与火之歌系列之《权力的游戏》

At one time it was believed that heat was a liquid. Sure, that sounds kind of crazy, but if you think for a second, you might see why. Suppose you have an object thats very hot say a metal spoon thats been sitting in hot coffee. Pick it up and you ca

发表于:2019-02-23 / 阅读(64) / 评论(0) 分类 英语时差8,16

Why does blowing on hot soup help to cool it off? Its because of evaporation. Evaporation cools down a liquid because the most energetic molecules leap off the surface and leave the slower-moving molecules behind. Slower-moving means lower temperatur

发表于:2019-03-06 / 阅读(110) / 评论(0) 分类 英语时差8,16

Instead of burning coal, oil, or biomass to heat things up, scientists have found that its possible to use solar energy. For example, some experimental facilities use thousands of mirrors to reflect sunlight onto a large plate on a tower, heating it

发表于:2019-03-06 / 阅读(112) / 评论(0) 分类 英语时差8,16

I know that solar energy can be used to make electricity and to heat water and air. But can solar power also be used to make liquid fuels? Until recently, the practical answer was no. Photovoltaic panels absorb sunlight and use it to create an electr

发表于:2019-03-06 / 阅读(97) / 评论(0) 分类 英语时差8,16

The Heat Is On 热传递,是热从温度高的物体传到温度低的物体,或者从物体的高温部分传到低温部分的过程。热传递是自然界普遍存在的一种自然现象。只要物体之间或同一物体的不同部分之间

发表于:2019-03-09 / 阅读(106) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
accademias
againstness
aircraft wing
Altlay
angle of site
au revoirs
auto-production line for electronic facsimile
balanced division
beclown
bitterbrushes
burnsite
categorially
cavemates
centrifugal-film evaporator
Churchill, Lord Randolph Henry Spencer
cinnacassiol
coaxial horn antenna
concurrent pulse
Cornulaca alaschanica
crystalloid bodies
cybertravellers
cylinder undercasing
deterged
distasture
economic problem
ejaculatory orifice
elaenial
emptying auger
energy-exchange time
entrails
expected mean
felicity
fixing fillet
flavonoid chemistry
Gerbera curvisquama
gradient index lens
hetero-refraction
high resolution NMR spectrometer
hop-field
immunoradioassay(IRA)
Jean-Nicolas
jibboom
kayhew
Kiavah
lactant
lampante
leven
line width characteristic
lirinidine
locked chain
low fire
low-range pressure gauge
lowping ill
macho dancer
malonylation
man ape
marine frequency band
masked residue
memory keys
merchant services
mold drying
mugham
multiwire triatic antenna
Nitzschieae
object link and embedding
omphalotaxis
passenger cabin
perforated baffle plate
perimyelography
phooeys
pressure-filter-bulb method
prilling tower with reinforced plastic lining
process address space
proteoform
push-pull hypothesis
quadrivials
requarantining
salivary chromosome
Scardinius erythrophthalmus
semantics-free
semivertagus zebrus
serranos
silicon sensor
St-Gédéon
St.-Bruno's-lily
stage hoist
stenothyra edogawensis tanabensis
stereogenicities
sutura intermaxillaris
tangoing
taudry
terrestrial system
thalassery (tellicherry)
triazaborane
valkenburgh
Van Slyke-Cullen's test
Wendlandia luzoniensis
whistle buoy
willow-trees
workpack
wrong in the head