热(俘获)法(减去热中子俘获)

You Do the Math Hello and welcome to Words and Their Stories from VOA Learning English. On this program we explain how to use common expressions in American English. We also explore the origins of these expressions. Where do they come from? Today we

发表于:2018-12-16 / 阅读(152) / 评论(0) 分类 2016年VOA慢速英语(十)月

Good Morning, at the CNN center here in Atlanta, I m Melissa Long, with a look at some of the stories that are happening Now In The News on this Wednesday morning. It's a big day for US automakers. Bankruptcy appears all but certain for General Moto

发表于:2018-12-20 / 阅读(73) / 评论(0) 分类 CNN2009年(五)月

Transcript This is Scientific American's 60-Second Science, I am Cynthia Graber.This will just take a minute. Physicists at the Brookhaven National Laboratory have been able to send information ahead of particle beams racing at nearly the speed of li

发表于:2018-12-24 / 阅读(118) / 评论(0) 分类 Scientific American(二)月

19.childrens numerical skills people appear to born to compute. The numerical skills of children develop so early and so inexorably that it is easy to imagine an internal clock of mathematical maturity guiding their growth. Not long after learning to

发表于:2019-01-02 / 阅读(415) / 评论(0) 分类 英语范文背诵20篇

If you are like many language students, you might have a problem with procrastination. Perhaps you are slow to do homework or study for a test. Maybe you do not like to study or you become distracted while studying. Whatever the case may be, learning

发表于:2019-01-02 / 阅读(415) / 评论(0) 分类 2017年VOA慢速英语(六)月

China builds first tower-type solar-thermal power station BEIJING, Nov. 12 (Xinhua) -- The first tower-type solar-thermal power station in Asia has been built in northwest Beijing, chief of the program said on Monday. Wang Zhifeng, a researcher at th

发表于:2019-01-07 / 阅读(133) / 评论(0) 分类 英语新闻

This is Scientific Americans 60-second Science, Im Cynthia Graber. This will just take a minute. I still tend to move my fingers almost subconsciously when doing arithmetic. Well, that might be not so strange according to research published in the Ma

发表于:2019-01-08 / 阅读(100) / 评论(0) 分类 Scientific American(五)月

The Salinity of Ocean Waters If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic s

发表于:2019-01-08 / 阅读(82) / 评论(0) 分类 英语小短文

Vacationing on the island of Oahu, we were waiting in our tour bus for some stragglers to show up. A man, obviously not with our group, approached the bus and was about to board. How would our driver

发表于:2019-01-11 / 阅读(174) / 评论(0) 分类 英汉幽默故事选读

EDUCATION REPORT - After 40 Years, Calculators in School Still Add Up to Debate By Nancy Steinbach / Broadcast: Wed, 7 Nov 2007 16:00:00 UTC This is the VOA Special English Education Report. Can you do the math: What is one hundred times four, divid

发表于:2019-01-11 / 阅读(61) / 评论(0) 分类 VOA慢速英语2007年(十一)月

When I was a kid I was top of the class in maths. I was really good at mental arithmetic and doing sums. Things were easy back then, It was all addition and subtraction, multiplication and division. I knew my times tables like the back of my hand. Th

发表于:2019-01-21 / 阅读(89) / 评论(0) 分类 纯正英语一分钟

Today a new geo-thermal power station was opened in Kawerau, in the eastern Bay of Plenty. Geo means earth and therm means heat. The power station uses hot steam from the earth. Like the geo-thermal power station at Wairakei, which opened in the 1950

发表于:2019-01-27 / 阅读(117) / 评论(0) 分类 新西兰英语

By Carol Pearson Washington 08 January 2008 New technology makes surgery safer, shortens recovery time and leaves no scars. Both physicians and patients are pleased with the results. VOA's Carol Pearson has more. Maria Viruet recently had her gallbla

发表于:2019-01-31 / 阅读(126) / 评论(0) 分类 VOA标准英语2008年(一月)

Vacationing on the island of Oahu, we were waiting in our tour bus for some stragglers to show up. A man, obviously not with our group, approached the bus and was about to board. How would our driver handle the situation, we wondered. Straight-faced,

发表于:2019-02-03 / 阅读(107) / 评论(0) 分类 趣味英语

WASHINGTON, Jan. 28 (Xinhua) -- The U.S. economy expanded by an annual rate of 3.2 percent in the fourth quarter of 2010, partly boosted by personal consumption and exports, the Commerce Department(商务部) reported Friday. U.S. real gross dome

发表于:2019-02-03 / 阅读(68) / 评论(0) 分类 英语新闻

Q: Lately I have struggled to get out of bed despite waking up a decent time to go to my lab (I'm a grad student), the end result being I fall asleep again and end up going in about 11.5 hours later than I really want to. How do I make myself actuall

发表于:2019-02-06 / 阅读(117) / 评论(0) 分类 阅读空间

Children's Numerical Skills People appear to be born to compute. The numerical skills of children develop so early and so inexorably that it is easy to imagine an internal clock of mathematical maturity guiding their growth. Not long after learning t

发表于:2019-02-17 / 阅读(139) / 评论(0) 分类 双语有声阅读

知识点讲解: 1、中文意思一样 insist persist 2、两个词长得像 special specialty 3、长得像+中文意思一样 technique technology ① Technique 方法、技巧 Hes a great basketball player. He has flawless technique. 他是位很

发表于:2019-02-21 / 阅读(90) / 评论(0) 分类 每天三分钟学英语

The Salinity of Ocean Waters If the salinity of ocean waters is analyzed, it is found to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic s

发表于:2019-02-25 / 阅读(149) / 评论(0) 分类 双语有声阅读

New Words 新单词 concrete adj. 具体的 addition n. 加 subtraction n. 减 multiplication n. 乘 division n. 除 frequently adv. 频仍地 withdraw v. 掏出 formula n. 公式,程式 plus prep. 加 minus prep. 减 compound v. 合成 times n. 倍

发表于:2019-02-25 / 阅读(122) / 评论(0) 分类 实用英语
学英语单词
airborne particles
altercating
application rate
artificia effect
Benlate
brake anchorage
brobhun photometer
bullet-nosed vibrator
californianus
cold sawing machine
condictio ex lege
connecting rod thrust
control sum
current cost
Danshu (B19)
data base
devastings
direct sum of sets
doigts
dormann
drenching apparatus for ash pan
ductile-brittle transition
dustballs
e filing
ecotourism
erethizontidaes
Esfīch
fill-up work slope
fixed centroid
geoform
grovelling
guarded coroutine
hema-
high-pressure cloud chamber
hop about
horizontal scan nonlinearity
hyperfocus
interpretive
isolated machine
jelly grade
keep in hold
keyed on crank
kwell
loading unit
long-haul radio
Lord Castlereagh
machine cost
magnetostriction cavitation corrosion test
make good use of
maske use of
maximum capillarity
meat offering
mee chiang kueh
metacharacter
noncreationary
on-line analog input
originality of an invention
osteoinduction
outhomers
overtaking the station
pdls
permanent negative charge
pointage
portered
post-sunsets
pregwood
pump out valve
region optimization
regional evolution model
reverse byte ordering
rings-around-the-rosy
Rophidiodea
saadeh
sampath
sanable
sapphire-blue
scattering budget
sciolists
selenic chloride
sequoiadendron giganteums
severel
sewage sludge incineration
shore net
significant operating experience report
single entry compressor
sit up and take notice
some-say
stowing gun
sympathetic root
talk...around
the like
triangle reflector
two-axis autopilot
universal legal order
unstony
vacuum gun
vertical mode index
weak-sidest
wet bulb globe thermometer
wine-dark
zoothera dauma toratugumi
zygosporophore