对数声波阻抗

插座、插头和其它连接物(电器连接) Sockets, plugs and other contacts [electric connections] 插头、插座及其他接触器(电接头) Plugs, sockets and other contacts [electric connections] 表面覆有带电导体的玻璃 Glass

发表于:2018-12-18 / 阅读(161) / 评论(0) 分类 英文语法词汇

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. If youve ever popped open a jar of the pickled fish, you know that herring like to stick together. Actually, its something they do naturally, even before

发表于:2018-12-24 / 阅读(225) / 评论(0) 分类 Scientific American(三)月

分集介绍:指数,log,对数微分;双曲函数 Exponential.and.log.Logarithmic.differentiation;.hyperbolic.functions

发表于:2019-01-05 / 阅读(475) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

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(198) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American's 60-Second Science, I'm Cynthia Graber. This'll just take a minute. When Harry Potter slips underneath his invisibility cloak, he can wander freely undetected, but what about a cloak of silence, one that completely deaden

发表于:2019-01-08 / 阅读(213) / 评论(0) 分类 Scientific American(六)月

Venice's Church of the Most Holy Redeemer has held a musical celebration every year since its construction in 1592. And recently, the church has inspired debate among historians: How could its echoing chambers clearly portray the complicated music pe

发表于:2019-01-08 / 阅读(231) / 评论(0) 分类 Scientific American(十一)月

This is Scientific Americans 60-Second Science.I'm Cynthia Graber . This will just take a minute. (Chirping sound.) That may not sound likemuchbut its the loudest animal in the world. For its size, that is. Theinsect called the water boatman is two m

发表于:2019-01-08 / 阅读(197) / 评论(0) 分类 Scientific American(七)月

The number of US households in some stage of foreclosure took another bump-up in July. The group RealtyTrac which maintains an extensive database of foreclosure activity nationwide says foreclosure filings last month were up 7% from the previous mon

发表于:2019-01-08 / 阅读(201) / 评论(0) 分类 2009年NPR美国国家公共电台8月

What Does the Multimedia Actually Mean? Literally, multimedia means TWO or more media. If the publisher of this book Wanted to join the Current hype about multimedia, he could advertise the book as using multimedia technology. After all, it contains

发表于:2019-01-08 / 阅读(204) / 评论(0) 分类 英语阅读理解

Lindsey KaneYou'll be whole to the one in the corner i got something to say you have never been alone know not even a day and i know that you feel a hope is gone away lost and fogot it and things take it away~~ but you wanna always be this way so you

发表于:2019-01-09 / 阅读(158) / 评论(0) 分类 好听的英文歌曲

One man's home is another man's journey Stars shine late and the sun shines early One man's straight and another man's curly It's just the way it goes One man's trash is another man's treasure Rummaging around in the rain in the weather One man's pai

发表于:2019-01-11 / 阅读(182) / 评论(0) 分类 美国乡村音乐

Well there's so much turning still Watching the fireflies drown Set fire to the sails Laughing as the boat goes down Well eyes tell a thousand tales I've been chasing my own one around Got a coffin with a thousand nails And we hammer this last one do

发表于:2019-01-11 / 阅读(141) / 评论(0) 分类 美国乡村音乐

Screams Have Special Place in Brain 尖叫声在大脑中会有特殊的位置 From VOA Learning English, this is the Health Lifestyle report. Have you ever thought about screaming? A blood-curdling scream is a natural reaction to sudden, extreme fri

发表于:2019-01-12 / 阅读(171) / 评论(0) 分类 2015年VOA慢速英语(八)月

By Doug Levine Washington 27 June 2007 It's been more than 15 years since saxophonist Joshua Redman won first prize at the Thelonious Monk International Jazz Competition. That honor proved to be a worthwhile stepping stone, as he went on to record mo

发表于:2019-01-13 / 阅读(225) / 评论(0) 分类 2007年VOA标准英语(六月)

Chris Hillman Edward Pederson's At Edwards BarnChris Hillman and Herb Pedersen had bluegrass in common when they met as teenagers in Los Angeles back in the early '60s, but the two didn't make much music together until years later. Hillman first came

发表于:2019-01-13 / 阅读(178) / 评论(0) 分类 VOA标准英语2010年(十二)月

LOURDES GARCIA-NAVARRO, HOST: If you're familiar with the band Disturbed, you're probably used to hearing them sound like this. (SOUNDBITE OF DISTURBED SONG, INSIDE THE FIRE) GARCIA-NAVARRO: But last year, the band softened its sound when they covere

发表于:2019-01-16 / 阅读(173) / 评论(0) 分类 2017年NPR美国国家公共电台1月

As 2014 draws to a close, its time to look back and see which words have been significant throughout the past twelve months, and to announce the Oxford Dictionaries Word of the Year. Without further ado, we can exclusively reveal that the Oxford Dict

发表于:2019-02-04 / 阅读(160) / 评论(0) 分类 英语新闻

Abadie's Sign Chinese阿巴迪征(跟腱受压无感觉,见于脊髓痨) Abaptiston Chinese安全开颅圆锯 abarognosis Chinese压觉缺失 abasia astasia Chinese立行不能 abasia Chinese步行不能 abdominal reflex Chinese腹壁反射 abduction Chinese外展 abiotrophy Chinese生活力

发表于:2019-02-07 / 阅读(222) / 评论(0) 分类 英文语法词汇

So what really happened? Hertzfeld asked. Is it really as bad as it looks? 到底发生了什么?赫茨菲尔德问道,真的有这么糟吗? No, it's worse. Jobs grimaced. It's much worse than you can imagine. 不,更糟,乔布斯一副愁眉

发表于:2019-02-15 / 阅读(183) / 评论(0) 分类 乔布斯传

The Way It Goes (Acoustic) - Passenger One man's home is another man's journey Stars shine late and the sun shines early One man's straight and another man's curly It's just the way it goes One man's trash is another man's treasure Rummaging around i

发表于:2019-02-18 / 阅读(167) / 评论(0) 分类 英文摇滚歌曲
学英语单词
a good buy
a hole to crawl out of
a pat of butter
a/d converter controller
acrotaeniostola hoenei
air-gap transformer
anasta
angle forwards welding
animal warden
apatetic
autoinhibits
autumn-flowerings
banus
basal sclerite
bunkoed
cadmium mercury telluride
camouflage canopy
cantalasaponin
carpopeltis maillardii
change-stress creep test
condenser heat transfer
counter pawl seat
data-compression protocol
delinquent account
democratic organization
differencially encoded coherent psk
dioctylfluorene
dreamiest
expanding gas
explosimeters
externally coherent pulse doppler radar
fatigue-notch factor
field mix
fluoronucleotides
fransson
gear increaser
gentilest
Grossostheim
helical flow pump
hettners
Hohle
in-pile dosimeter
infra-red technolgoy
intrabronchiolar
invariabilities
iso-anisosyndetic alloploid
izbas
krons
Kummer extention
laet
land revision survey
lean year
low-speed regulation
m. sphincter pupill?
Manacapuru, R
matrix calculus
maximize value
mechanical wearing
multiple cross glide
nasa stress analysis
nelie
nest of drawers
niece fucker
Notholirion macrophyllum
oleine
organic absorbent
Os parietale
ovular hemiphyll
Parakmeria kachirachirai
parere
pcntylene
pogromed
power reverse
programme musics
programmed language based enquiry system
psyched-up
pull our punches
quarrelled with
right hand control car
rock plain
rule of arithmetic
sales profit amount
Saticoy
schH
section factor
Serravalian Age
service leases
sine generator
solderless
splenial teeth
stain removing mark
steering wire steering gear
Super-Bowl
take someone in on a secret
thin membrane
Tight financial and monetary policy
time-shared dynamic allocator
unsoaped
upflow fluidized bed
wipe the ground up with someone
wire pressure meter
x-rateds