流体流动阻力

Do you need eight glasses of water everyday? Tring to do the right thing by drinking eight full glasses of water everyday may do little more than making a person run to the bathroom, a researcher said. Newspaper articles, health and beauty magazines

发表于:2018-12-05 / 阅读(177) / 评论(0) 分类 有声杂志阅读

World Action Needed to Prevent Widespread Antibiotic Resistance Since the discovery of penicillin in 1928, we have used antibiotics against a host of infections. But now, doctors are finding that more and more bacteria are resistant to even the stron

发表于:2018-12-08 / 阅读(170) / 评论(0) 分类 VOA标准英语2015年(十二月)

I got that flow girl So got that dough girl got that dough If you ain't know girl I'm tryina get wit you tryina get wit you Let's take it slow If it's real, let me know girl let me know I just need to know what's up with me and you Sup? Baby girl I'v

发表于:2018-12-16 / 阅读(203) / 评论(0) 分类 节奏布鲁斯

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(214) / 评论(0) 分类 突破英文词汇

The spokesman for the Lord's Resistance Army says Congolese forces and U.N. peacekeepers in Congo Kinshasa are preparing to move against the rebel group, which has yet to sign a peace deal to end a 20-year reign-of-terror in the region. VOA Correspo

发表于:2019-01-06 / 阅读(226) / 评论(0) 分类 VOA标准英语2008年(九月)

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. In theory, scientists could learn a lot about our health by testing tiny amounts of bodily fluidsa drop of blood, a tear, a bead of sweat. But somethin

发表于:2019-01-08 / 阅读(192) / 评论(0) 分类 Scientific American(十一)月

Antibiotics Breed Drug Resistance in Pigs Pigs given low doses of antibiotics had more E. coli in their guts, and that bacteria showed an increased resistance to antibiotics, according to new research. The study confirms the routine practice of feedi

发表于:2019-01-13 / 阅读(161) / 评论(0) 分类 VOA标准英语2012年(一月)

Vidushi Sinha | Washington, DC 18 May 2010 The World Health Organization calls antibiotic resistance one of the three greatest threats to human health. Experts fear antibiotic resistance puts humans in danger of becoming nearly defenseless against so

发表于:2019-01-13 / 阅读(202) / 评论(0) 分类 VOA标准英语2010年(五)月

Kenya: Misuse of Antibiotics Leading to Resistance by Immune System NAIROBI In Kenya, the rise of drug resistant bacteria could reverse the gains made by medical science over diseases that were once treatable. Kenyans could be at risk of fatalities a

发表于:2019-01-14 / 阅读(181) / 评论(0) 分类 VOA标准英语2015年(一月)

As Assault On Mosul Looms, Resistance Grows And ISIS Grows More Brutal play pause stop mute unmute max volume 00:0003:43repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your

发表于:2019-01-17 / 阅读(172) / 评论(0) 分类 2016年NPR美国国家公共电台10月

Artemisinin, also known as QingHaoSu in Chinese, was discovered by Chinese scientist Tu Youyou. She received the 2015 Nobel Prize for Physiology and Medicine for the drug's discovery by her team more than three decades ago. In her speech at the Karol

发表于:2019-01-19 / 阅读(228) / 评论(0) 分类 2015CRI中国国际广播电台

英文歌词: She said i'll throw myself away, They're just photos after all I can't make you hang around. I can't wash you off my skin. Outside the frame, is what we're leaving out You won't remember anyway I can go with the flow But don't say it does

发表于:2019-01-26 / 阅读(211) / 评论(0) 分类 英文摇滚歌曲

22 防止口蹄疫的传播 DATE=3-17-01 TITLE=IN THE NEWS #472 - Foot-and-Mouth (1)Disease BYLINE=George Grow (Start at 1'08

发表于:2019-01-30 / 阅读(232) / 评论(0) 分类 科技之光

flow vi.流,流动 flower n.花,花卉;开花 flu n.流行性感冒 fluctuate vi.波动 vt.使波动 fluent a.流利的,流畅的 fluid n.流体,液体 flush n.兴奋,脸红;发烧 flute

发表于:2019-02-01 / 阅读(437) / 评论(0) 分类 考研英语

By David McAlary Washington 10 January 2007 One of the main weapons to prevent mother-to-child transmission of the AIDS virus during birth is the drug nevirapine. But when nevirapine is used alone just once, HIV starts becoming resistant to it. Rese

发表于:2019-02-04 / 阅读(189) / 评论(0) 分类 2007年VOA标准英语(一月)

爱的反抗力 Muse - Resistance Resistance Muse Is your secret safe tonight? And are we out of sight? Or will our world come tumbling down? Will they find our hiding place? Is this our last embrace? Or will the walls start caving in? (It could be w

发表于:2019-02-05 / 阅读(158) / 评论(0) 分类 好听的英文歌曲

I got that flow girl So got that dough girl got that dough If you ain't know girl I'm tryina get wit you tryina get wit you Let's take it slow If it's real, let me know girl let me know I just need to know what's up with me and you Sup? Baby girl I'v

发表于:2019-02-11 / 阅读(216) / 评论(0) 分类 节奏布鲁斯

后角 clearance angle 龙门刨削 planing 主轴 spindle 主轴箱 headstock 卡盘 chuck 加工中心 machining center 车刀 lathe tool 车床 lathe 钻削 镗削 bore 车削 turning 磨床 grinder 基准 benchmark 钳工 locksmith 锻 forge 压模

发表于:2019-02-18 / 阅读(220) / 评论(0) 分类 实用英语

Can it really be sixty-two years ago that I first saw you? 我们初次相遇,难道真的是六十二年前吗? It is truly a lifetime, I know. But as I gaze into your eyes now, it seems like only yesterday that I first saw you, in that small ca

发表于:2019-02-19 / 阅读(169) / 评论(0) 分类 英语美文

My friend Sarah is a vet. I have asked her to tell us about a typical days work. I am a veterinary surgeon and work for a charity called PDSA, which stands for the Peoples Dispensary for Sick Animals. We treat pets belonging to people who are on stat

发表于:2019-03-01 / 阅读(214) / 评论(0) 分类 听播客学英语
学英语单词
ala dei sardi
allergic diet
anterior basal branch
armour piercing fin stabilized sabot tracer
aunt sallies
autocollimation theodolite
bell push button
bet against
beta-emitting
bill finance
biological hologram
Borg-Warner overdrive
child-related
Chile
clinostatic bradycardia
commutator vee (V) ring
cost recovering
crowtree
despatch delay
digicam
distribution resonance
dodder
dynamometamorphic rock
facilities
fasciculi lateralis proprius
genus Leiopelma
gessler
Googleheimer's
hammer ... into
hangfires
harpa articularis
hayseed
hit the ball twice
home control network
Hoplonemertini
house of many doors
indicator indicial admittance
input/output supervisor
interbirth
intestinal adenocarcinoma
ipgs
KSOS
lateral line pits
Laucalon
leaneth
lentiform ore body
liver coccidiosis
luteine
mammality
mean compressibility
monochorea
nematoblasts
nodilymphatici lumbales
noncrazy
nosocomial infections
nullspaces
octagonal coil
ornithon
ossa carpi accessoria
outdentation
palm off something
parallax computation
parallel-type inverter
pendant group
phallus rugulosus
Plexus testicularis
prasinous
remote indicator servomechanism
Retinacula cutis
ride a long peak
ruffianship
screw up one's courage
semisubmersible barge
shaddocks
shapouri
smack of sth
Sound Market Value of Ship
spasmoxal
Spatium episclerale
static restructuring
subthalmogram
subtropical conifers
swinbank
swing-forging machine
taboggans
text-to-speech convert
the original formation of amino acids
thimble plug assembly
thymus independent deficiency
to tighten your belt
towboats
tridecylene dicarboxylic acid
trunel
ultrasound camera
underextensions
unsmelled
vacky
vestibule end sill
wash-outs
weensiest
zigg