[化] 沉降式离心机; 离心沉降器

Business, Farming Go Greener to Protect Nairobi Water Supply 商业农业双管齐下保护内罗毕水资源 NAIROBI In a unique pairing of business interests and conservation, a new water fund is launching in Kenya to better-protect Nairobi's main

发表于:2018-12-16 / 阅读(66) / 评论(0) 分类 VOA标准英语2015年(三月)

Extreme Storms Are Extreme Eroders数天百年的效果 In 2013, a rare September storm swept across the plains of Colorado. When it hit the Rockies, it dropped more than a foot of rain in places like Boulderas much as the city sees in an entire year

发表于:2018-12-24 / 阅读(57) / 评论(0) 分类 2017年Scientific American(四)月

Extreme Storms Are Extreme Eroders数天百年的效果 In 2013, a rare September storm swept across the plains of Colorado. When it hit the Rockies, it dropped more than a foot of rain in places like Boulderas much as the city sees in an entire year

发表于:2018-12-24 / 阅读(65) / 评论(0) 分类 2017年Scientific American(四)月

The K-T boundary marks the end of the age of dinosaurs, and the beginning of the age of mammals. KT界限层标志着恐龙时代的终点和哺乳动物时代的开端。 But does the K-T boundary really signify the absolute end of all dinosaurs? 不过

发表于:2018-12-28 / 阅读(81) / 评论(0) 分类 侏罗纪搏击俱乐部

Among these vessels, how many went down with all hands, with their crews and hosts of immigrants, 在这些船只中,有多少是和它们的船员旅客和财物一起, at these trouble spots so prominent in the statistics: Cape Race, St. Paul I

发表于:2018-12-31 / 阅读(71) / 评论(0) 分类 《海底两万里》中英双语有声读物

Smartphone App Helps Snakebite Victims Scientists in Denmark have developed a venom test kit to help doctors treat victims of snake bites. The kit was created to be simple and has only two pieces of equipment: a centrifuge and a smartphone. 丹麦科学

发表于:2019-01-03 / 阅读(92) / 评论(0) 分类 2018年VOA慢速英语(二)月

商业农业双管齐下保护内罗毕水资源 Jane Kabugi, 68, is readying for her planting season. For five years, she was a subsistence farmer-consuming all she produces. 现年68岁的简恩卡布吉为自己的种植季节做好了准备。这

发表于:2019-01-14 / 阅读(78) / 评论(0) 分类 VOA标准英语2015年(八月)

Aah, snorkeling in the Great Barrier Reefblue, clear water, magnificent coral, beautiful fish. How about cloudy water and dying coral and you have to look pretty hard to spot a fish anywhere? Nobody would want to go snorkeling in waters like you just

发表于:2019-01-26 / 阅读(50) / 评论(0) 分类 英语听力文摘 English Digest

Gibbs is perhaps the most brilliant person that most people have never heard of. Modest to the point of near invisibility, he passed virtually the whole of his life, apart from three years spent studying in Europe, within a three-block area bounded b

发表于:2019-01-29 / 阅读(73) / 评论(0) 分类 万物简史
学英语单词
airfield flight information service
all-ceramic crown
allergic arteritis
anionoid rearrangement
annual cutting per cent
anone
arrhenatherums
as-of-right
autofont support
autologous bone marrow transplantation
balanced earthwork
BF3 neutron monitor
billi cycle
bolas
burmensis
childbear
climatic lifeform
contracting-expanding nozzle
customises
cyclobutanedicarboxylato
data antidependence
detasseling
dihydracrylamic acid
Dihydroisoalantolactone
dripping eave
editing procedure
exam system
Exanta
experimental mass-transfer coefficient
flood
flow routes of the meridians
folding wedges
forepass
frequency threshold
functionates
glossy black bituminous coal
goes so far as to
group VA element
hautboist
hitching of rope
husband-and-wife
Hymenochlaena pteroclada
I'll be hanged if...
i-thrat
integrated motorists information system
irghizite
iso cost line
joint probability distributions
Kiel Canal
kori
Kumagami
laser bandwidth
leedy
light conductors
linear configuration
lymbery
magnesia-alumina-silica
n'a
name days
Nieuw Nickerie
nitrate lye
non-functional
noncontender
number of revolutions
Oborniki
Oostmalle
order recommendation
P0-357
Pathwe
Percy Isles
phenylindanedione
pipettor
planning ahead
positive criteria
power adjusting test
primary ore mineral
push-type machine
repetitive projector
RR layup
sarcobiot
self-generating anemometer
sharing rate
Sigmodon hispidus
single channel radiometer
single sided double density
SML
ST_space_centres-of-objects
substitutive short
supercritical gaseous discharge
syder
symbol use table
Tabernas
tilt stabilization
timberlike
total divisor
transit of goods
travelling trolley
triboelectric series
unidirectional magnetic field
unprimitive
weldbore
zenith star