时间:2019-01-08 作者:英语课 分类:Scientific American(五)月


英语课

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute.


Olive oil producers generally guess the best time to harvest their olives by

checking the fruit’s color. The olive has to hit that perfect spot where they’ve just turned ripe—purple to black—but aren’t yet falling to the ground. Now, scientists at Israel’s Ben-Gurion University are helping 1 them out with nuclear magnetic resonance 2, also known as NMR. NMR is usually used medically to create images or measure a specimen’s levels of proteins and fat.  But this is the first time it’s being used industrially. Researchers first take digital photos of olives at different levels of ripeness. Then they put the olives in the NMR machine. Within a few seconds it determines the olives’ oil content. Combing the photos with the oil information allows scientists to create a database correlating peak oil with perfect color. A farmer in the field could take pictures of his crop. A special camera would average the olives’ color and tell him the optimal 3 time to harvest. In a test, a local farmer learned that if he had harvested his crop 10 days earlier, he could have gotten 25 percent more olive oil.


Thanks for the minute. For Scientific American's 60-Second Science, I'm Cynthia Graber.



n.食物的一份&adj.帮助人的,辅助的
  • The poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
  • By doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。
n.洪亮;共鸣;共振
  • Playing the piano sets up resonance in those glass ornaments.一弹钢琴那些玻璃饰物就会产生共振。
  • The areas under the two resonance envelopes are unequal.两个共振峰下面的面积是不相等的。
adj.最适宜的;最理想的;最令人满意的
  • What is the optimal mix of private and public property rights in natural resources?私人和国家的自然资源产权的最适宜的组合是什么?
  • Optimal path planning is a key link for the sailing contest.帆船最优行驶路径规划是帆船比赛取胜的关键环节。
标签: SSS industrially
学英语单词
ace boon coon
agar jelly
agricultural insurance
alert someone to
alternative plan
andrade's law of transient creep
automatic load balancing device
Auvillers
baby-back
back-stabber
barabash
Barabinskaya Step'
beauty sleep
blind nasotracheal intubation
breakpoint analysis
bullet perforating
calcium metaborate
calculated
California laurel
carburetor primer
choriocarcinoma of parametrium
Congo
control dictionary
creature comfort
cyclohexyl tosylate
data access system
data technology
deathrate
didymosphaeria minutella
dot-screen
drummy
excess horse power
fatalite
fibreboards
flat-hand
gas emission forecast map
gos lettuce
Guyane Francaise
heirophants
hypothesis of axial geocentric dipole
impulse condition test
jugfish
ledgy
Little Colorado River
LPEV (low pressure extraction valve)
magnetic tape file formatter
mainbody
Medio-Pleistocene
memory-banks
microsiphuncle
Mizrachi
monoaxial monster
Mossoro
muffulettas
Muskat intercept
NC(numerical control) processing system
neurinoma
organomagnesium
outer addendum
pastoralising
patella (pl.patellae)
pentamethylene diamine
planning power
plenity
plica arteriae epigastricae inferioris
postobservation
prime locallizing subcategory
Purchasing Managers' index
pyrotechnic shock
quadratus
quarter davit
quartus
reik
rhesus blood group
Sangers
self-loading container trailer
setting punch
simulation model parameter estimation
slippier
snlci caroticus
spectroscopic variable
splenatrophy
spring tidal currents
steely
stockholders meetings
super gene
tapeinocephaly
therapeutic boarding school
total cross section
truth maintenance
uncontrolled variable
uniceps
uterine sibling
white man's grave
whitewashed transaction
wide-range recording and monitoring system
will-power
winsberg
wood-destroying fungus
Woodwards Cove
Zaunguzskiye Karakumy
Zimmerman I.