完全不变量系;全系不变式系

You cant judge a book by its cover. But you can judge a dog by its coat. You can even read right through to its genes. Because a study in the August 27th online issue of Science shows that just three key genes govern the length and texture of dog fur

发表于:2018-12-24 / 阅读(54) / 评论(0) 分类 Scientific American(八)月

The Bird Flu Recently , the news has been filled with reports of the “bird flu.” Asia is on a region-wide health alert, with governments slaughtering millions of chickens to contain 1 outbreaks

发表于:2018-12-30 / 阅读(87) / 评论(0) 分类 英语沙龙2004全年合辑上

Scientists say they have made a leap in knowing why some people retain their youthful looks while others age badly. 科学家称他们已经在探究为什么有的人青春长驻而另一些人逐年老去这一问题上取得突破性进展。 They

发表于:2019-02-01 / 阅读(32) / 评论(0) 分类 阅读空间

克里姆林宫决定斯诺登的未来 MOSCOW, June 30 (Xinhua) -- As Edward Snowden has been perching at an international airport of Moscow for a week, Kremlin said Sunday the former CIA contractor's future was not yet on its agenda. The President

发表于:2019-02-06 / 阅读(42) / 评论(0) 分类 英语新闻

WASHINGTON, March 15 (Xinhua) -- Mothers who are overweight or obese during pregnancy are more likely to give birth to bigger babies, new research suggested Tuesday. The study, published in the Journal of the American Medical Association, also found

发表于:2019-02-16 / 阅读(38) / 评论(0) 分类 英语新闻

Business 商业报道 Civilian jet engines 民用航空发动机 Gearing up for a fight 奋力一战 Pratt amp; Whitney hopes a high-tech engine will restore its former dominance. 普拉特惠特尼公司期待其新款的高科技航空发动机能重

发表于:2019-03-09 / 阅读(166) / 评论(0) 分类 经济学人商业系列
学英语单词
abili
acustica
air-supplied
aisnes
Alocen
analysis on substances and energy flow
areameter
association manager
azorubin(e)
battle -scarred
Beaupreau
blue pus organism
bravade
brockmann body
calibre (caliber)
cameco
carbon-dioxides
cathey
chamberies
cheddahs
class lycopodineaes
computable index
connive
cootamundra
crap shoots
cuspidal tangent
dalyells
deep culture
ecological overlap
electric flower cars
ernst-mach
external carotid nerves
external memory address register
fixed reorder quantity system
glaucosiderite
gutmen
hanger ear
hexakisphosphates
hydrox blaster
ITEP synchrotron
Kleven'
Kohlrausch bridge method
lamsters
lesionlike
licensed database
ligamentum trianglulare sinistrum
linear state space transformation
lyricize
Lyttleton
M-O
magnitude-frequency relation
make at
Man in the Iron Mask
mecholyl bromide
microdesigner system
milsey
modulated medium frequency electrotherapy
Monache
Mussaenda esquirolii
nordstrandite
ogsinogenous
ostwald-de waele model
overwhelmedness
p-n junctions
party in breach
platform screen doors
potassium ethyl xanthogenate
prifuroline
PSB-BF
pseudo-level
puddled
pulsed radio system
railthin
ram-ratio
relay fritting
salvatoris
scherbet
semiperpendicular
six-irons
sodium-sensitized thermoionic detector
steam drying
submersible
superwomen
supply shortage
tarfile
TG (test generator)
the integral
thin boards
thorough-bolt
thread take-up lever thread eyelet bushing
thrillingly
tourmaline-schist
trimethyl-tin-radical
tsunami run-up
Vaccinium kachinense
vertical bench milling machine
visibility function
wappin
waste residue treatment
white-footed mice
Wichita Mountains Wildlife Refuge
zedd