蒸汽分压力

If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the

发表于:2018-11-28 / 阅读(349) / 评论(0) 分类 新概念优美背诵短文50篇

Aqua Spacecraft 水资源监测太空船 NASA's latest and most ambitious weather satellite is measuring Earth's water cycle. Learn more about the Aqua satellite -- today on Earth and Sky. DB: I'm Deborah Byrd. JB: And I'm Joel Block for Earth and Sky. This

发表于:2018-12-07 / 阅读(142) / 评论(0) 分类 (科普英语)Earth and Sky

Conditions on Mars were so harsh that it was hard to imagine any life surviving there. The idea of sophisticated aliens was wiped out. We know that conditions on Mars today are not very good for life.

发表于:2018-12-07 / 阅读(138) / 评论(0) 分类 火星生命

Rainforests exist because it rains a lot and that makes the forests grow, right? Well, not so fast. What if its not the rain that makes the forestswhat if its the forests that actually generate the rain? Thats the contention of a paper in BioScience

发表于:2019-01-02 / 阅读(189) / 评论(0) 分类 60秒科学

Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

发表于:2019-01-08 / 阅读(147) / 评论(0) 分类 Scientific American(五)月

Cooking is one big science experiment and chefs have been gaining fame for more explicit uses of scentific techniques and tools in the kitchen. Now, according to an article in the December issue of physics world, mixologists the folks behind the bar

发表于:2019-01-08 / 阅读(135) / 评论(0) 分类 Scientific American(十二)月

The Salinity of Ocean Waters If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic s

发表于:2019-01-08 / 阅读(150) / 评论(0) 分类 英语小短文

In contrast, Jupiter and Saturn are all atmosphere. Unlike Earth, Jupiter doesnt really have a solid surface that you could stand on and then have your head up in the atmosphere looking at the clouds. Its just a giant, giant gas ball. Only one other

发表于:2019-01-23 / 阅读(111) / 评论(0) 分类 探索与发现2014年

科学家估计,如果不减少二氧化碳排放,2100年地球平均气温将至少上升4摄氏度,到2200年会上升8摄氏度,无疑是地球灾难性的噩梦。 此前有科学家用气候模型分析称,全球气温将受二氧化碳排

发表于:2019-02-06 / 阅读(115) / 评论(0) 分类 阅读空间

BEIJING, Oct. 21 (Xinhuanet) -- A team of European researchers announced that they have found vast water vapor out of our solar system, according to a study in the U.S. journal Science Friday. Using Herschel Space Observatory, a European Space Agency

发表于:2019-02-09 / 阅读(154) / 评论(0) 分类 英语新闻

Man, born of woman, is of a few days, and full of trouble; 人从呱呱落地,只是短暂的几天,麻烦不断; He cometh forth as a flower, and is cut down; 他初如鲜花哪堪折; He fleeth also as a shadow, 像影子一样循去, And

发表于:2019-02-11 / 阅读(115) / 评论(0) 分类 美国语文第六册

【英文原文】 If I were to stop drinking water right now, how long could I live? There are several different factors involved here. A human being isnt an automobile which needs a certain amount of gas. There are conditions under which a person c

发表于:2019-02-16 / 阅读(117) / 评论(0) 分类 英语听力广播—Listening

The Invisible Hand 无形的力量 A: What's going on? B: Check out the setup , Yaoyao. A: A stove, an empty aluminum soda can, kitchen tongs , and a saucepan . Are you experimenting with a new recipe ? B:No, i'm experimenting with air pressure. A:Ho

发表于:2019-02-16 / 阅读(119) / 评论(0) 分类 英语听力文摘 English Digest

What the Student Say in Science Classes 自然科学课上学生们都说了什么 The following quotations were gleaned from classroom discussions in 5th and 6th grade science classes. 下面的这些话都是从五六年级的自然科学课的课堂

发表于:2019-02-17 / 阅读(144) / 评论(0) 分类 英语小达人

LOS ANGELES, April 18 (Xinhua) -- Sugarcane(甘蔗) has the effect of cooling temperatures(温度) , thus playing role in stemming global warming, a new study has found. Sugarcane does so by reflecting sunlight back into space and by lowering the

发表于:2019-02-18 / 阅读(137) / 评论(0) 分类 英语新闻

Dehydration 脱水 If I were to stop drinking water right now, how long could I live? There are different factors involve d here. A human being isnt an automobile which needs a certain amount of gas. There are conditions under which a person could di

发表于:2019-02-24 / 阅读(140) / 评论(0) 分类 英语听力文摘 English Digest

There are 320 million cubic miles of water on Earth and that is all we're ever going to get. 地球上有13亿立方公里水,这是全部。 The system is closed: practically speaking, nothing can be added or subtracted. 系统已经关闭,说得明

发表于:2019-02-25 / 阅读(144) / 评论(0) 分类 万物简史

How obvious it is it, too, that this necessity for the whale's rising exposes him to all the fatal hazards of the chase. 鲸既然必需这样冒出水面来,那么,它显然就有遭到追击的一切生命攸关的危险了。 For not by hook o

发表于:2019-02-25 / 阅读(121) / 评论(0) 分类 白鲸记

The Salinity of Ocean Waters If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic s

发表于:2019-02-25 / 阅读(194) / 评论(0) 分类 双语有声阅读

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(113) / 评论(0) 分类 双语有声阅读
学英语单词
a big fish in a little pond
Allitrid
anarchial
Apache Camel
AR-wire
aviation sickness
bat detector
blackbush
Candida polymorpha
cannabich
carton plank dented
circular-burner
concentrated additive
control stand cover
crown plate
dcer
degressive taxes
distal nail groove
duke-of-gloucester
East I.
Edgewater Heights
elastic membrane (larynx)
eosentomon brevisensillum
equatorial segment
estimation of range
false imprisonments
fermentation microbiology
gonia
Gordie Howe
grooving of valve seat
gross blowhole
ground water geochemistry
Helminthosporium leaf spot
high-pressure system
hold water
holosteoides
hydraulic fuel injection timing advance device
impulsive impedance
international corporation law
international drainage basin
jazzniks
kamaboko and fish sausage
kampman
labiochoreic stuttering
lacerating machine
Latiner
limiting allowed temperature
liquid expansion thermometre
logical arms position
lomilomiing
maintenance fertilization
maximum safety temperature
meander scar
Monsel's salt
multiple-word processing system
multitransmitter
near as no matter
no love lost
noi-settes
nonacrimonious
normophosphataemic
open world
outgangs
paddle your own canoe
perfluorinated
periodic heat transfer
phantom midge
possible accuracy
pro-gay
profit structure
Pterocephalus
ptychoid
quick cutting
rats
reassignment of units
Remsen
responsive environment
satellite virus
semiconductor optical amplifier (soa) modeling
shieldtails
single measuring range
slowing-down brake
spin-stabilized spacecraft
spray aerator
stern loading access
sunspaces
syringo-hidroadenoma
telephone pickup
temperature resolution
thankin
time centre
tourist tax
transthoracic pacing
tumor of lenticular nucleus
united states maritime commission rates
Verkhovazhskiy Rayon
wakelin
wash-out structure
whose fault
widow's benefit
wind gully
zephyry