向量减法

发表于:2018-12-08 / 阅读(273) / 评论(0) 分类 医务英语

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(396) / 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(229) / 评论(0) 分类 CNN2009年(五)月

To me, we actually went an ad line earlier with Apple, 苹果以前有一条广告: that the personal computer was the bicycle of mind, 计算机是思想的自行车 and I believe that with every bone in my body, that of all the inventions of huma

发表于:2018-12-27 / 阅读(317) / 评论(0) 分类 名人传记

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(708) / 评论(0) 分类 英语范文背诵20篇

379 、 石棉 asbestos;asbestus 380 、 石膏 PlasterofParis 381 、 示波器 oscilloscope 382 、 立体图 pictorialdrawing 383 、 交流电流 alternatingcurrent(a.c.) 384 、 交流电压 a.c.

发表于:2019-01-03 / 阅读(323) / 评论(0) 分类 英文名句短语

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(313) / 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(317) / 评论(0) 分类 英语小短文

SEC(Single Edge Connector,单边连接器) Shallow-Trench Isolation(浅槽隔离) SIMD(Single Instruction Multiple Data,单指令多数据流) SiO2F(Fluorided Silicon Oxide,二氧氟化

发表于:2019-01-09 / 阅读(323) / 评论(0) 分类 实用英语

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(259) / 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(305) / 评论(0) 分类 纯正英语一分钟

Say it with us: Kids today have it sooooo easy. A new smartphone app will do their math homework for them, provided it's not too complicated. PhotoMath by microblink uses a phone's camera to solve equations and then teaches you the step-by-step metho

发表于:2019-02-02 / 阅读(294) / 评论(0) 分类 阅读空间

add v.(to)加,增加;补充说,又说 解析:addition n.加,加法;附加物 additional a.附加的 subtraction n.减法 division n.除法 multiplication n.乘法 数学plus 加 / minus 减 add up t

发表于:2019-02-03 / 阅读(263) / 评论(0) 分类 英文语法词汇

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(259) / 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(318) / 评论(0) 分类 阅读空间

Secretary-Generals Message on World Health Day 秘书长世界卫生日致辞 7 April 2014 2014年4月7日 Every year more than one million people die from diseases carried by mosquitoes, flies, ticks and other insects, such as triatomine bugs. These

发表于:2019-02-09 / 阅读(348) / 评论(0) 分类 英语笔译

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(325) / 评论(0) 分类 双语有声阅读

遥感Remotesensing 多谱线扫描器Multispectralscanner 分辨率Resolution 像素Pixel 谱带Spectralbands 红外线Infrared 紫外线Ultraviolet 雷达Radar 轨迹Path 景物确认Sceneidentificat

发表于:2019-02-18 / 阅读(365) / 评论(0) 分类 英文语法词汇

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(333) / 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(330) / 评论(0) 分类 实用英语
学英语单词
acoustic surface wave detectors
airborne speed
algal polysaccharides
amphipathic property
angled-in
approval certificate
baus-baus
blackhull disease
bland diets
blocking distance protection equipment
by absolute necessity
capacitive voltage transformer
capronia pilosella
cedco
Charles R.
Chaturon
check track
chrome lignosulfonate
closed edge train
compris
constant variance
countercozen
crayonize
cyclohexyl isocyanate
dactyl (greece)
declaration for sea transportation
differential pressure flowmeter
diffuse phlegmon
diphthongise
economic aggregate
filmarone
Forward Quoted
gas furnace
genus Cryptogramma
grease tap
half elliptic
heat conductivity pressure gage
help screens
hydrochores
incidence vane
IND-SURG
Indosasa triangulata
inmo
insolubilise
interference pulse
intermediate carrier
international bidding
interpretiveelectrocarouograph
Langmuir's theory
linckoside
liquid-solid boundary
mammectomies
man is the measure of all things
medioventrally
method of organizing business house
monobacterial
Nervus supratrochlearis
odourless
orenda
panel dry kiln
Paymogo
phylloclades
pneumaticallytired buggy
polite conversation
polycephalous root
probe time
putour
Reggeism
repertory dialler memory
Rio Grande fever
rubber gasket
sandoricum indicum
school-leaving
sediment index
semi-circular surface flaw
semivertagus nesioticus
setting-up exercises
Shahs
spif
Spirillum violaceum
sprigge
stubble-feeding
subgrade restraint
sulphurlike
television set
The tailor makes the man.
Thermoplasmataceae
transaction mode
Trichazol
undisposedness
unicity
unwashed wool
validly
variegated position effect(muller 1930)
velocity method
vertical beam
vertical tube
vulgata
weight bracket
wired-in check
wrangelia tanegana
xzibit