锅炉管距

塞内加尔推行生育间隔 或可减少贫困 On a busy day at the Fith Mith Clinic in a suburb of Gudiawaye, just outside of Dakar, MamyDiop had just given birth to her third child, only one year and three months after the previous.She did not k

发表于:2018-12-16 / 阅读(55) / 评论(0) 分类 VOA标准英语2016年(七月)

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Asbestos increases the risk for certain cancers. The fibers are thought to do so by skewering cells, setting off chemical reactions that lead to inflammation,

发表于:2018-12-24 / 阅读(69) / 评论(0) 分类 Scientific American(九)月

85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson (Start at 1'04

发表于:2019-01-02 / 阅读(105) / 评论(0) 分类 科技之光

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

发表于:2019-01-08 / 阅读(107) / 评论(0) 分类 Scientific American(四)月

Todd: OK so, here we go, now Terry you were saying that you went from Vancouver to San Diego. How many days did that take? Terry: Um, the total trip took 42 days but that included one day on the bus up and then one day on the bus back so 40 days on t

发表于:2019-01-08 / 阅读(42) / 评论(0) 分类 原版英语对话1000个

International Conference Highlights Family Planning in Senegal With the global population reaching 7 billion this year, doctors and health officials are advocating better family planning methods. Senegal, where some 2,000 international delegates gath

发表于:2019-01-13 / 阅读(47) / 评论(0) 分类 VOA标准英语2011年(十二月)
学英语单词
accessory multiplication
acid seal paint
adjudicated rights
almond moths
antigen crosslinking
background count
basic combat maneuvering
Binswanger dementia
bombardiers
calflike
Caprasse
cerebellar gait
cinematographe
class spongiostromata
Committee for Development Planning
complementary exporting
content-based
Debre-Fibiger's syndrome
demonstration by example
depriving dilemma
diffuse cystic mastopathy
dihydrothiouracil
European ash
extracellular
face mold
failure investing
flash photolysis
flash-type stroboscopy
flicker control
four-bar linkage stacker
function level transformation
fusibility diagram
gaud
geordi
grassies
haft
harbo(u)r bureau
have a common purse
head cap
holograph
homogenous
inapt
inextensibility
intensity dip
intermediatetype
jedin
kapok-tree
kirn baby dance (scotland)
limitation clause
LIVBP
loktal tube
magnesium coke
maneuverable warhead telemetry
maritime law
marketing facilities
master control switch
master roller
materialistically
microprogrammed subroutines
minimum stable distribution
mixing bi-directional
necrobacillary
nonimaging sensor
nuclei quintus
Nyanza Prov.
oblately
obtuse buoy
open parking ground
optically denser medium
pet student
polyenylphosphatidylcholine
precipitating csystallization
presaturated
radioactive immunoassay
raphaeloes
sadh
scavenge valve
short-stuff
south islands
stoopless
Streptococcus septicus
tallowy
termination of pratnership
TFFN
thick films
tiltable plate telescope
to all hours
towel weave
tranilast
trap handler
trophedema
typing time equivalent
UDP
undecandioic acid
university teacher
upper chromosphere
Uttar Adāba
verbicidal
Vilya
water bump effect
willerbies
yudha