最小可检测流量密度

Friday, December 1st marks the 30th World AIDS Day. 这个周五的12月1日是第三十届世界艾滋病日。 One aim of the event is to show support for people living with HIV, the virus that causes Acquired Immune Deficiency Syndrome, or AIDS. A

发表于:2018-12-08 / 阅读(166) / 评论(0) 分类 2017年VOA慢速英语(十一)月

The standard measure of a food's spiciness is its rating on the Scoville scale, 食物辣度的标准计量方法是借助史高维尔辣度单位测量, which measures how much its capsaicin content can be diluted before the heat is no longer dete

发表于:2018-12-18 / 阅读(145) / 评论(0) 分类 TED演讲教育篇

1. fluid /ˈflu:ɪd/ -- 1. substance that flows 2. not rigid; changing easily Air, water, molasses and milk are all fluids. 空气、水、糖蜜和牛奶都是流体。 During November, the military situation remained fluid, with advances and retres

发表于:2018-12-30 / 阅读(229) / 评论(0) 分类 突破英文词汇

When it came to the second round of tests, Dr Golle found that the personalities of those who had gone to university had changed not a statistically detectable jot. 在第二轮测试时,Golle博士发现那些去读大学的人,他们的性格变化

发表于:2018-12-31 / 阅读(208) / 评论(0) 分类 经济学人科技系列

That was intriguing enough for them to be awarded a chunk of coveted observing time on the Hubble Space Telescope, to take a closer look. 这对他们来说足够令人着迷,因为他们可以获得大量观测时间,用哈勃空间望远镜进行

发表于:2018-12-31 / 阅读(150) / 评论(0) 分类 经济学人科技系列

This is Scientific Americans 60-Second Science, Im Cynthia Graber. This will just take a minute. Seismologists spend a lot of time listening to the earth. Ocean acoustic monitors have been providing information on the earths vibrations since the 1930

发表于:2019-01-08 / 阅读(206) / 评论(0) 分类 Scientific American(六)月

This is Scientific Americans 60 second Science, I am Cynthia Graber, This will just take a minute. Scientists are looking for Earth-like planets around other stars. But one way to limit the search can be to figure out where an Earth-like planet canno

发表于:2019-01-08 / 阅读(158) / 评论(0) 分类 Scientific American(五)月

Getting Tested Is First Step In Controlling HIV/AIDS 去做检查是控制艾滋病的第一步 From VOA Learning English, this is the Health Lifestyle report. 这里是美国之声慢速英语《健康与生活》节目。 The International AIDS Con

发表于:2019-01-12 / 阅读(148) / 评论(0) 分类 2016年VOA慢速英语(七)月

Egypt's Moussa Stresses Experience in Time of Flux Moussa's past is both a strength and a weakness. The former foreign minister and ex- Arab League chief says he is ready to lead the nation. The country is in a major crisis, noted Moussa. And a major

发表于:2019-01-13 / 阅读(175) / 评论(0) 分类 VOA标准英语2012年(五月)

Show me what you gonna do. Show me what you gonna do. 让我们看看你要做什么 让我们看看你要做什么 That's right. Mr. Goal is on later.We'll talk about how much we love Mr. Goal. Ha. 好吧 待会再聊目标先生 我们来谈谈我们

发表于:2019-01-28 / 阅读(133) / 评论(0) 分类 艾伦脱口秀

今天我们要学的词是flux。 Flux, 是动荡的,不断变化的。 The leadership of Yemen is in flux after former president Saleh was forced to step down, 也门前总统萨利赫被迫下台后,国家领导层处于动荡之中。 Afghani

发表于:2019-02-03 / 阅读(185) / 评论(0) 分类 英语单词荟萃

Science and technology 科学技术 Astrochemistry 天体化学 The great test tube in the sky 空中的大试管 Space is one big chemistry set 宇宙是一个很大的化学装置 MOST people think of the empty space between the stars as being, wel

发表于:2019-02-04 / 阅读(144) / 评论(0) 分类 经济学人科技系列

今天我们要学的词是 minimum。Minimum 最少的,最起码的。You need to keep a minimum balance of $250 in your checking account in order to avoid a monthly fee. 如果不想交月费,你活期帐户余额必须维持在250美元以上。

发表于:2019-02-04 / 阅读(187) / 评论(0) 分类 英语单词荟萃

Children who spend large amounts of time with their fathers have higher IQs, according to a new study. 一项新研究显示,经常与父亲在一起的孩子智商更高。 Strong fatherly involvement in their early life can also improve a child's

发表于:2019-02-06 / 阅读(136) / 评论(0) 分类 阅读空间

With his supervisor, Harry Whittington, and fellow graduate student Derek Briggs, Conway Morris spent the next several years making a systematic revision of the entire collection, and cranking out one exciting monograph after another as discovery pil

发表于:2019-02-17 / 阅读(169) / 评论(0) 分类 万物简史

20 Small World 第二十章 小生物的世界 It's probably not a good idea to take too personal an interest in your microbes. 要是你对身边的微生物过于在意,这很可能不是个好习惯。 Louis Pasteur, the great French chemist and

发表于:2019-02-17 / 阅读(155) / 评论(0) 分类 万物简史

Howeverand heres the thingpeople on the train would have no sense of these distortions. 然而问题就在这里车上的人并不觉得自己变了形。 To them, everything on the train would seem quite normal. 在他们看来,车上的一切似乎

发表于:2019-02-17 / 阅读(128) / 评论(0) 分类 万物简史

Science and technology 科学技术 Medical technology 医学技术 Skin deep 肌肤之下 A better way to diagnose skin cancers 诊断皮肤癌的更好方法 DERMATOLOGISTS are good at spotting unusual bits of skin that might or might not be cancer

发表于:2019-02-18 / 阅读(164) / 评论(0) 分类 经济学人科技系列

TOKYOStrong aftershocks continued to rattle Japan main's southern island of Kyushu on Sunday as rescuers confronted harsh weather in a race to rescue dozens of people believed still trapped under collapsed buildings. At least 41 people have died, six

发表于:2019-02-18 / 阅读(173) / 评论(0) 分类 英语新闻

Science and technology 科学技术 Forensic zoology 法医动物学 The elephant in the room 房间里的大象保护大象,刻不容缓! Dating ivory has just become easier. Poachers beware 确定象牙年代已变得更容易了,偷猎者们要

发表于:2019-02-24 / 阅读(361) / 评论(0) 分类 经济学人科技系列
学英语单词
aggressive carbon dioxide
agostinoes
air frictionn tachometer
al-watan
anti-reaction coil
antiseptic(substance)
aquae foeniculi
artichoke bottom
bacteriacides
Bellevaux
bootable CD-ROM
brevilegnia subcentrica
buz dag
canine coronavirus infection
castles in Spain
centric lock
centrum cinereum
cheer for
clear-story
cold-knife
coleosportum petasitis leveille
competitive trial
cumi-cumi
cursorsius cursors
direct-reading scale
dominant control
dowcare
drop-weighted tear test
eagle's-eye
Eastern Equatoria State
Eckert map projection
epipharyngitis
factory overhead expense variance
family composition
fillmore
finger-fucking
Funafuti Atoll
geekette
generalization concept
get into a muddle
H-type internal combustion engine
hair care
Hanfic
have a breakdown
heat-shrinkage fit
heptandiol
individual language code element
inductor factor
intercostal neuralgia
Jehovah's Witnesses
jet analyzer
la fe
lay up in lavender
littoraria melanostoma
loop output signal
Lusatian
malignant apthae
mallines
Mashileh
mineral right
narcisms
nazifies
Obote, (Apollo) Milton
original gum
oxidation-resisting steel
Pareto optimization
Pentapetes phoenicea
phase-rotation relay
pilot wire regulator
plenilunar
polarising voltage
prepayment for equipment
propps
pseudoventricle
purple willow
quinovic
R.N.C.
rack pipe
reevesia thyrsoidea lindl.
request block
roll stability
rollaway bed
Ryczywół
self-rejection
sgwd
sheelah
silver-nickel contacts
sintered bronze filter disc
solar laser power station for space use
solution physical development
steam distributing pipe
structural deficiency
tactile adaptation
take keep the pledge
Tarutung
theke
Theravadin
topological transformation
uncontrollably adrift
unincentivized
virginia katherine mcmaths
woodsia ilvenses