水、汽品质监测仪表

Genius at Work 天才在工作 Henry Ford didnt always pay attention in school. One day ,he and a friend took a watch apart. Angry and upset, the teacher told him both to stay after school. Their punishment was to stay until they had fixed the watch.

发表于:2018-12-07 / 阅读(225) / 评论(0) 分类 世界上最美丽的英文-人生短篇

When we change a liquid into vapour, and cool this vapour till it is liquid again, 将水加热成水蒸气, 然后对其进行冷却直至再次液化, we are said to distil the liquid, and the apparatus for doing this is called a still. 这个过程就

发表于:2018-12-18 / 阅读(139) / 评论(0) 分类 英国学生科学读本

Thus by heating liquids we cause them to evaporate, or change into vapours or gases; 因此, 可以看出:我们能够通过加热液体使得它们蒸发, 变成水蒸气或气体; and by taking away heat from these gases, or cooling them, we tu

发表于:2018-12-18 / 阅读(152) / 评论(0) 分类 英国学生科学读本

Lesson 88 Condensation 第88课 冷凝 When the water in a kettle boils, it boils first at the bottom. 当水壶中的水沸腾时, 首先开始沸腾的是底部的水。 We cannot see this in a kettle, because the kettle is made of iron. 我们无法

发表于:2018-12-18 / 阅读(196) / 评论(0) 分类 英国学生科学读本

Lesson 7 THE GOLD-FISH 第七课 金鱼 Have you ever seen very pretty little fishes, of a bright yellow or golden colour, swimming in a glass bowl of water? Look in the shop-windows, and perhaps you will see some. 小朋友, 你见过浅黄色或者金

发表于:2018-12-18 / 阅读(135) / 评论(0) 分类 英国学生科学读本

Can you tell the difference between Modern Violin and Tecra craft by Italian masters .Don't feel so bad, expert players can't do it either. In double blind test, 21 experienced violinists unable to tell difference between rare old instruments and new

发表于:2018-12-24 / 阅读(144) / 评论(0) 分类 Scientific American(一)月

21 James Watt And The Teakettle 詹姆斯瓦特和水壶 James Baldwin 詹姆斯.鲍德温 A little Scotch boy was sitting in his grandmothers kitchen. He was watching the red flames in the wide open fire- place and quietly wondering about the caus

发表于:2018-12-28 / 阅读(137) / 评论(0) 分类 陈冠商英语背诵文选合集

STATEMENT OF MANUFACTURING EXPENSES FROM AJI-02 Sup.4 For the year ended JULY.31,1998 MONETARY UNIT: YUAN ITEMS LINE NO. THIS YEAR'S THIS MONTH'S LAST YEAR'S PLAN ACTUAL ACTUAL Salaries and wages Depr

发表于:2019-01-03 / 阅读(166) / 评论(0) 分类 财会英语

Henry ford didn't always pay attention in school. One day, he and a friend took a watch apart. Angry and upset, the teacher told him both to stay after school. Their punishment was to stay until they had fixed the watch. But the teacher did not know

发表于:2019-01-08 / 阅读(140) / 评论(0) 分类 英语阅读理解

The Dead Sea is the lowest point on earth and runs more than 50 miles in length and stretches 11 miles across its wildest point, bordering Israel, The West Bank and Jordan. Large sections of the coast are fenced off and sign posted in Hebrew and Engl

发表于:2019-01-22 / 阅读(151) / 评论(0) 分类 自然百科2009年

英语美文:Genius at Work (天才在工作) Henry ford didnt always pay attention in school. one day ,he and a friend took a watch apart. angry and upset, the teacher told him both to stay after school. their punishment was to stay

发表于:2019-01-30 / 阅读(202) / 评论(0) 分类 阅读空间

A little Scotch boy was sitting in his grandmother's kit- chen. He was watching the red flames in the wide open fire- place and quietly wondering about the causes of things. In- deed, he was always wondering and always wanting to know. Grandma, he p

发表于:2019-02-03 / 阅读(213) / 评论(0) 分类 英语背诵文选第一册

Beijing will experience five days of poor air quality partly caused by heating systems being turned on, officials announced on Tuesday. 有关官员在周二表示,由于冬季供暖开始,未来5天北京的空气质量将比较差。 Pollution

发表于:2019-02-03 / 阅读(218) / 评论(0) 分类 英语新闻

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(158) / 评论(0) 分类 英国学生科学读本

There would soon be an explosion; the kettle would be burst open. It is in this way that boiler explosions are often caused. When there is too much steam in a boiler, and it cannot get out, it presses against the sides of the boiler, until at last th

发表于:2019-02-07 / 阅读(211) / 评论(0) 分类 英国学生科学读本

BEIJING, Dec. 28 (Xinhua) -- Chinese lawmakers on Friday suggested formulating an environmental monitoring law to prohibit disorderly, arbitrary monitoring of the environment. China lacks a special law or regulation on the management of environmental

发表于:2019-02-08 / 阅读(165) / 评论(0) 分类 英语新闻

Lesson 28 A Block Of Salt 第28课 一块盐 Every day we eat some of the white powder which we call salt. Salt does our bodies good, and keeps them healthy. We eat it at dinner along with our meat. We eat it, too, with eggs, and watercress, and with

发表于:2019-02-13 / 阅读(170) / 评论(0) 分类 英国学生科学读本

其实,推断题没有想象中的那么难,因为托福文章有很清晰的逻辑架构,T(topic)+A(aspect)+A(attitude)的篇章结构和TS(topic sentence)+D(detail)的段落结构是几乎每节课我都会提到的,只有明白了文章的写

发表于:2019-02-18 / 阅读(177) / 评论(0) 分类 托福英语

To talk more about China's environmental protection targets, we have Wu Changhua, the Greater China Director of the Climate Group. But before we start, let's take a look at a set of numbers to have a clearer picture of how bad the environment is. Air

发表于:2019-02-18 / 阅读(273) / 评论(0) 分类 cctv9英语新闻2015年

James Watt And The Teakettle A little Scotch boy was sitting in his grandmother's kit- chen. He was watching the red flames in the wide open fire- place and quietly wondering about the causes of things. In- deed, he was always wondering and always wa

发表于:2019-02-25 / 阅读(126) / 评论(0) 分类 双语有声阅读
学英语单词
acanthogorgia vegae
agentive
air attenuation
aldous leonard huxleys
all - terrain vehicles
Anthili
anthropise
area-frame sampling
babkin
base of a triangle
benolizime
blade straining device
boucasin
cammarano
canaanitics
capelike
caviar to the multitude
cebiches
cissoidal curve
combination diagonal pin type die set
constrain
d-cal
demonstration flight
ear-mark of a mortgage
earth-resistivity
emprie cloth
encyclopedia of sports
fission density
fitting-on
fornix vagina
free lunch
funny car
germiculture
globemaker
gonorrheal endocervicitis
Half a loaf is better than no better than none .
henhood
hexominoes
hyan
hydraulic pipe transport
Ilizarov apparatuses
incentive export system
indigerable
infinite display
interstitial gland
irrigation furrow
jetadmins
Kalianorthite
Kustener's incision
like a clock
linea semicircularis
little wonder
low-density data system
medullary bundle
mercurifying
musculi supraspinatus
naphthacetol
navigational base
non-foaming test
nonpotential
nonsimulation
off axis aberration
ohmic pseudo-polarization
oil-feed pump
overdusting
oxydate
pairpoint
Pelecyphora
phantom dialing
phlizz
Polemonium chinense
Portuguese language
potassium hypobromite
precatory
printed letter entropy
procreate
Queensport
re-capitalize
reflecting level
RIA-radioimmunoassay
sauveur
sequenator(sequencer)
shlicks
street pattern
successive approximate values
sweet sherry
symphoniousness
systems audit
tank-selector valve
teeming stage
testaceus
time at anchorage
time-to-number converter
toila
tricot fabric
tuned-amplifier
Vansittart
volume group
walk into sb
xenon dichloride
young guns
zebra shark