时间:2019-01-20 作者:英语课 分类:Scientific American(八)月


英语课

   It's similiar to a pregnancy 1 test: a drop of liquid on a strip of paper causes an easily seen color change. But imagine that kind of simple, cheap technology employed in testing for pollution or health issues anywhere and on the cheap. Researchers at Colorado State University describe such a system in the journal Lab on a Chip. Other paper tests may give only slight color differences and some relies on expensive equipment to read their results. For the new technology, the research team designed a system that creats a dramatic color change on the paper. The user drops liquid to be analyzed 2 at the bottom of the paper. As capillary 3 action pulls the liquid up, substances in the paper react causing the color change. So far, three tests exist for the system. One looks for nickle which can be an environmental pollutant 4. The other two are for glutathione, a health marker, and glocose for diabetics. In trials,the paper tests competed with conventional methods at measuring concentrations. The university is now spinning off a company to develop the technology. If successful, it could bring cheap, easy analysis to scientists and citizens around the world.



n.怀孕,怀孕期
  • Early pregnancy is often accompanied by nausea.怀孕早期常有恶心的现象。
  • Smoking during pregnancy increases the risk of miscarriage.怀孕期吸烟会增加流产的危险。
v.分析( analyze的过去式和过去分词 );分解;解释;对…进行心理分析
  • The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
  • The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程,因为对他来说,爱是个不可分析的迷。 来自《简明英汉词典》
n.毛细血管;adj.毛细管道;毛状的
  • Rapid capillary proliferation is a prominent feature of all early wound healing.迅速的毛细血管增生是所有早期伤口愈合的一个突出表现。
  • When pulmonary capillary pressure is markedly elevated,pulmonary edema ensues.当肺毛细血管压力明显升高时,就出现肺水肿。
n.污染物质,散布污染物质者
  • Coal itself is a heavy pollutant.煤本身就是一种严重的污染物。
  • Carbon dioxide may not be a typical air pollutant.二氧化碳可能不是一种典型的污染物。
学英语单词
1-Chlorohexane
a blotting pad
a1
agricultural use
aluminium (aluminum) (al)
aluminium-steel cable
Andelst
antigerm
antitau
areal geochemical anomaly
art design
astronomic camera
avascularization
benzyl isothiocyanate
brench
cardinal virtues
cationic macromolecular demulsifier
CB-3025
cheloniba testudinaria
chexk for tightness
cinenik
coexpression
Comitoina
cooperage stock
corpus base
cover coating
cp/m disk operating system
culinarily
delivery department
diclusters
distant from
encinctured
encored
eynes
film stock
final crushing
flanking manoeuvre
get rats
glove-and-stocking anesthesia
gravediggin
gunnerside
hanger supported shaking screen
high-speed circuit breaker(HSCB)
housej property management
HYPRO
incents
input power constraint
interactive multimedia
invariant polynomials
KKR method
leapfrogging
longum
Lonicera ciliosissima
magnetosome
Mammadov
mantle groove
manufacturing operating system
marsement
migration current
minimum password age
mink oil cream
mondos
mowner
nonradicals
obtaining a gurantor and pending trial
padda oryzivoras
pentosephosphate
pseudo-intransitive
rana clamitanss
reciprocal affinity
regulator of the market
rotational dispersion
run and run
saucer-shaped depression of vitreous body
selective jamming
set sb. on the right path
Shomolu
Signal letters.
Sir James Paget
spinal injury
springs
sri basil dance troupe
stachyophyllum
standing-eyes closed test
store management
stress-strain plot
T-shirted
Tarasivka
technostrategic
texturing variables
third category vessel
time interval bell
touch point
tricyanovinylation
twin-beddeds
urolabida suppressa
velete
waldholz
wave-power breakwater
wood refuse
woodacres
xyelids