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(251) / 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(135) / 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(206) / 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(510) / 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(494) / 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(210) / 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(180) / 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(176) / 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(255) / 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(130) / 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(177) / 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(182) / 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(203) / 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(181) / 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(138) / 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(179) / 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(198) / 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(162) / 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(211) / 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(191) / 评论(0) 分类 实用英语
学英语单词
adjustment procedure
alien abduction
aquicolous
arrive reach a decision
bead cover
beam rider radar
bedrenches
bilge piping system
bronchi segmentalis medialis
bundle of conics
call in the way
capitalized words
carry bone in the teeth
cartophily
ch'a chiao pu wu
chloranemic
chlorphenol red
continue-any mode
core disassembly accident
counter-movement
counting room
cylindrical monopole
d-1 component digital vtr
damp-blanket speech
delta certificate revocation list
ditetrigonal bipyramidal class
Dods.
Domafste
doter
E-flat minor
Ear-Heliao
field reset generator
flattenings-out
flying sickness
formal glycerine
four hearth furnace
galloper
genus embothriums
Geser
get married to
gobicus
halide test torth
halogen test
health expenditure
hocine
husking yield
late stamping
lemyra alikangensis
library object
lochearn
medium-size motor
mercury barometer
merocyanine dye
methioninol
monstrison
Namacurra
nephelinite
Nonne-Milroy-Meige syndrome
nuclear quadrupole moment
partial pressure gradient
participating carrier
pastori
penalty provisions
pentifylline
pin slide caliper
polyagglutination
prebloom spray
proteetive gap
pseudoconchoid
psychoda pseudobrevicornis
pteralium
random retrieval
re-gifting
recipiomotor
recovery management
refrigerated cooling
regulation of sediment-laden stream
respiratory stimulant
rotating flail spreader for muck
safety pad
single-sintering process
sole of rudder
stadium exsiccationis
sword-and-sandal
system modeling principle
ten-four
Thanh Chuong
theodolite tribrach
thermal expansion ammeter
toluene tribromide
tray dyeing
two-sided generator
ubiks
unmuscled
unsensate
uranyls
vertical correction pulse
vestibule end carline
won't be long
working range
X-ray escape peak
xiezilou