高次谐波共振

By Melinda Smith Washington 30 March 2007 Since the mid-20th century the World Health Organization reports there has been an increase in the rate of breast cancer among women in developed countries. For decades, doctors have urged their patients to d

发表于:2018-12-16 / 阅读(126) / 评论(0) 分类 2007年VOA标准英语(三月)

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Why do some chords sound sweet but others make you wince? Well it appears our earsor at least the ears of 250 Minnesota undergradsprefer chords containing harm

发表于:2018-12-24 / 阅读(71) / 评论(0) 分类 Scientific American(五)月

Students who listened to different chords rated as more pleasing the ones that westerners think of as harmonious, the individual notes of which have definite mathematical relationships 【英文文本】 Why do some chords sound sweet but others make

发表于:2019-01-02 / 阅读(54) / 评论(0) 分类 60秒科学

54 时差对大脑的影响 DATE=6-6-01 TITLE=SCIENCE REPORT- Jet Lag and the Brain BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-04 / 阅读(102) / 评论(0) 分类 科技之光

Searching the Internet can be a totally exhausting experience, as you bounce from one site to another to another, sometimes until you cant remember what you were looking for in the first place. But according to scientists at U.C.L.A., all that virtua

发表于:2019-01-08 / 阅读(60) / 评论(0) 分类 Scientific American(十)月

Vocalist Catherine Russell is always searching for that next great melody. She's found more than a dozen of them to sing on her latest album, Inside This Heart Of Mine. Catherine Russell is a perfectionist when it comes to choosing her material. Her

发表于:2019-02-06 / 阅读(54) / 评论(0) 分类 VOA标准英语2010年(六)月
学英语单词
a fight to the finish
account disclosure document
action-driven
adaptativeness
Adenophora tricuspidata
Alegyun
alvo
Ammodytes
amongst
andromeda polifolia l.
backslaps
bangboard
berlowitz
bicopters
ceiling light
cermets ceramic metals
citronellol
colibacillary
command supporting wildcard
common meters
desie
diving support vessel
double prism monochromator
drill-seismic facies section
elutriation rate constant
endoscopic suction valve
enlarged sieve frame
enthused
expected test time
faint of heart
family phthiriidaes
Fery cell
final girls
flex circuit
fundamental dimension
gachet
generalized radiance
get back up
global satellite system
grid holder
guardroom
hot-water-bottle
hyponymously
ignition reserve
intercardinal point
interexperimental
isopterus
kilnlike
Labrinthondonts
light-type structure
maximum cavity pressure
mean semi-squared difference
mechanical accuracy
meter amplifier
multiple culvert
nan hsiang tzu
new British standard wire gauge
nitrogenous matter
nitrosulphurious
ocean basin
pair of pipes
pedometrical
PENTACEROTIDAE
Polygonum pubescens
polysulphates
position indicator pointer
pre-Keynesian theory
quasi experimentation
radio-frequency bandwidth
recamiers
reconnoitrings
renal lemophilia
reverse-acting spiral
rice center
right-hand upper lower derivative
roentgenometer
sack grip
smooth contour
space dance
Sporoxeia clavicalcarata
steel spout
Store Darum
support oneself
syncytioma benignum
Tainai-gawa
temporary receipt
thanes
thisen
total bright leaf equivalent yield
tourist bus operating condition survey
treble chance
unbarbarous
up-tradings
us mt
Valdayskiy Rayon
verona earth (celadonite)
vitrail
volume implant
wadded cushion
wash clean
water aeration kinetics