土壤腐殖质化学

By Gary Garriott Broadcast: July 29, 2003 This is Bill White with the VOA Special English Agriculture Report. Soil conservation efforts protect soil from wind and water that can blow or wash it away.

发表于:2018-12-07 / 阅读(59) / 评论(0) 分类 VOA2003(下)-农业与经济

As It Is - Remember Your Chemistry Classes? An international team of researchers recently reported creation of a new element that is 40 percent heavier than lead. The researchers successfully developed what they are calling Element Number 117 at a la

发表于:2019-01-03 / 阅读(63) / 评论(0) 分类 2014年VOA慢速英语(八)月

Mars Rover to Begin Taking Soil Samples This Week Jessica Berman NASA engineers say the Mars rover will begin taking its first soil samples as soon as it departs the landing platform . Engineers say t

发表于:2019-01-04 / 阅读(64) / 评论(0) 分类 VOA2004(上)--各类新闻

Having the opportunity to take on a diverse range of classes such as economics and chemistry along with her music studies is the perfect combination for Diane. Marsha James | Washington DC 10 August 2010 Oberlin Conservatory of Music Student Diane Ly

发表于:2019-01-13 / 阅读(47) / 评论(0) 分类 VOA标准英语2010年(八)月

By Tom Rivers London 07 October 2009 Ada Yonath (file photo) Two Americans and one Israeli share this year's Nobel Prize in Chemistry for their work showing how the DNA code is translated into life itself. Americans Venkatraman Ramakrishnan and Thom

发表于:2019-02-03 / 阅读(49) / 评论(0) 分类 VOA标准英语2009年(十月)

By Kevin Billinghurst Stockholm 10 October 2007 The 2007 Nobel Prize for Chemistry has been awarded to Gerhard Ertl of the Max Planck Society in Berlin. Kevin Billinghurst has the story from Stockholm. The Royal Swedish Academy of Sciences honors Pr

发表于:2019-02-04 / 阅读(50) / 评论(0) 分类 2007年VOA常速英语(十月)
学英语单词
-gogue
12-Methoxyibogamine
acid buret
alimony
alkyl rhodanate
andromedae
anogrammas
asota tortuosa
authorization file
biaxial principal vibration axes
block structured
bone nipper
capacitance type sensor
central site control facility
CFS charge
checkable
Ciston
co-climatary
collision avoidance light
conceptual colour
cooperative type specialized
Corydalis formosana
crowdedness
data editing between internal and external form
digiti
double amplitude peak
effective blood plasma flow
effectiveness of regenerator
ferro-silicate
fixed ammunition
fluted-roll drill
foot races
fractional centrifugation
fractional lot
fuel detonation
galactosyrinx
gambling man
glucosepane
grabbers
graphical
Hobbesianism
hot air balloon
index matching material
internal pyramidal layer
Isora
jack flag
Kyzyltu
launching button
Leader of the Opposition
lrn recursive scan
magnetic -coupling flowmeter
make a pother
mbla
minimum movements
molecular scale temperature
ocean climate
odara
ohioensis
on-chip delay
operating report
ordinary goods
P23k
peisleyite
pennsylvania-german
Polish plait
pollen mentor
Port Safety
positron-electron
probabilistic word function
rainin'
rational integer
reactive vacuum sputtering
reconfigurable processor
route with overlapped section in the same direction
sail about
scarlet fritillary
selfode
shock dynamics
sika
statement of expense
stock borrowed
supervaluations
surface of rail
tagliarini
tandem knife switch
tenebrousnesses
thermo-couple ammeter
Thālith, Ash Shallāl ath(Third Cataract)
to bay
toled
transfinite number
trichopterans
unidentified track
untradesmanlike
USNR
utility session
ventilation of coal pits
Villanueva de Argaňo
wide-bed-type press brake
working glass container
XML Protocol
yok