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
advance number
advertising system
archiater
Bagard
banana shot
barbado
bearing stand
beaumantage
beet sugars
bernays
boat haul seine
breakin function
caloron
cathead chuck
cockolds
comet of Jupiter family
Copsamine
crosstie
dandrufflike
deck pillar
def.
Dijsselbloem
dramatize
droxone
eccoprotic
El Perdigón
elevator cup
Eptam
equilibrium conversion
evaporative pumping
export dumping
family Tipulidae
forward charges
forward perpendicular
freight marketing
FRLG
fuse -wire
Galicians
gartner's canal cyst
gastric cycle
gastrically
gastroduodenofiberscopy
glass seam
hanwell
hazard alert
Helmholtz resonators
hemoplanesis
Hopper,Grace Murray
hug the throne
human reasoning
inventory store
jungle-plant
Kastle-Meyer tests
Kingdom of Bhutan
Klyukovniki
knopkierie
lactone colouring matters
leguleian
lend itself
leutheusser-schnarrenberger
macroeconomic forecasting
mala(al mala)
marymae
medical-model
meridian gyro
middlebox
monolight
movely
muffler clamp
national economic balance
non-vertical energy transfer
noneditors
normoglycaemic
palaeohydrologist
particularisations
perforated stone
Piaca
Pinguinus
Raymond Thornton Chandler
relative harmonic content
republics of costa rica
research emphasis
road broom
rubber-tired open-pit drill wagon
salt poisoning
scleroderma vulgare
selfidentity
silks and satins
ski-slope
slewing rate
slide binder
speleotherapy
stiteler
strepavidin
Tamil literature
the courage of one's convictions
Tylophora tengii
ufology
universal bar
variegate porphyria
warp bridge
Yanggok-ri