水蒸气蒸馏

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(281) / 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(82) / 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(76) / 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(137) / 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(96) / 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(83) / 评论(0) 分类 Scientific American(十二)月

Cooking is one big science experiment. And chefs have been gaining fame for more explicit use of scientific techniques and tools in the kitchen. Now, according to an article in the December issue of Physics World, mixologiststhe folks behind the bara

发表于:2019-01-08 / 阅读(87) / 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(76) / 评论(0) 分类 英语小短文

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(55) / 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(96) / 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(60) / 评论(0) 分类 美国语文第六册

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(81) / 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(85) / 评论(0) 分类 英语新闻

Brandy From Wine: How Alcohol Is Turned Into Brandy? 白兰地酿造工艺精湛,特别讲究陈酿时间与勾兑的技艺,其中陈酿时间的长短更是衡量白兰地酒质优劣的重要标准。干邑地区各厂家贮藏在橡木桶中的

发表于:2019-02-24 / 阅读(76) / 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(84) / 评论(0) 分类 万物简史

Because the greatest necessity for so doing would seem to be, when in feeding he accidentally takes in water. 因为,它之所以要这样排水,最大的原因倒似乎是因为它在吃东西的时候,偶然吸进了水的缘故。 But the Sp

发表于:2019-02-25 / 阅读(63) / 评论(0) 分类 白鲸记

Furthermore, as his windpipe solely opens into the tube of his spouting canal, 而且,因为它的气管是单独通向它那喷水道的管子的, and as that long canallike the grand Erie Canal is furnished with a sort of locks (that open and s

发表于:2019-02-25 / 阅读(67) / 评论(0) 分类 白鲸记

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(72) / 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(141) / 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(61) / 评论(0) 分类 双语有声阅读
学英语单词
atropus atropos
automatic parser generator
away-day
Bacsalmas
Bakoondfontein
balkanized
Barone, Mte.
belt compensator
beod
between-wind-and-water
bleeped
buggas
buttwelds
carrier-assisted transport
Central American Economic Association
check syntax
coordination contour
correction of error
deltawinged
deprofessionalising
ders
direct fuse
Doppler location and range system
European tortoise
evening star
fecal streptococcus
feeder drain
field trips
finite positive entropy
fireengine
fish-neck
food additives
free-air dose
from the nature of the things
galloping ghost
Gangnam
garch in mean (garch-mean) model
gdp price deflator index
giacomini
gonadectomy
Hamelin Pool
inner ventury
interlock bypass
inventory adjustment
ischaemic
laser weapons
lewiston
mace-bearer
manifestness
meet one's liabilities
meet with one's death
meroquinolamide
mesothelia
mobile tube
musetti
mustn't
oleoresinous coating
oophore
optical quartz
overthinker
par excellence
Parida, I.
peach globose scale
peripheral indent
photoelectron-stabilized photicon
pirate river
plesiomorphism
portable oscilloscope
pre-combat
primary exchanger
professional relation
pseudorandom number generator
psychedelic drug
re-connect
recovery gas-oil ratio
rotational gravitational instability
rumble noise
Santa Ana Heights
seed coat fragments
selecting sap sample
sensitivity to smoke
Shigella alkalescen
skew (in facsimile)
sluicebox
smilacis glabrae rhizoma
spawls
speckled ware
Ste6p
stem-loops
straight table rolls
synthesis database
tape backup
the sanctity of life
threnodist
topiramate
tracheoceles
twenty-high roll mill
u-substitution
uncombusted
where someone is coming from
word processing system
zeroing