[网络] 毫米波;毫米波传输;微波雷达前车报警监视系统

This is Scientific America's 60 second science, I'm Sentay Graber, this will just take a minute. Magnifying glass, telescope, tiny tiny tape measure, these are the weapons with which researchers are fading it out to find the world's smallest frog.One

发表于:2018-12-24 / 阅读(59) / 评论(0) 分类 Scientific American(一)月

Magnifying glass, calipers, teeny tiny tape measure, these are the weapons with which researchers are fighting it out to find the world's smallest frog. One team just announced the discovery of the unaverage 7.7 millimeter p* which can sit comfortabl

发表于:2018-12-24 / 阅读(55) / 评论(0) 分类 Scientific American(一)月

Cameras were once big and bulky. Today,really good cameras fit in your pocket. And now, researchers at Cornell havedeveloped a camera thats just a half-millimeter on each side and a hundredthof a millimeter thick. The lens-less device is called a Pla

发表于:2019-01-08 / 阅读(70) / 评论(0) 分类 Scientific American(七)月

AS IT IS 2016-10-05 Nobel in Chemistry Goes to Makers of Worlds Smallest Machines 2016诺贝尔化学奖:世界上最小的机器 Three scientists have won the Nobel Prize in Chemistry for their work in developing tiny machines. The three men are Jea

发表于:2019-01-12 / 阅读(67) / 评论(0) 分类 2016年VOA慢速英语(十)月

Got ballistics back on the Holder murder. 霍尔德凶案的弹道分析出来了 They pulled two 7.62 millimeter bullets out of him. 他们取出了他身上两枚7.62毫米的子弹 According to the stippling and size of the entry wound, 根据伤口

发表于:2019-01-29 / 阅读(36) / 评论(0) 分类 绿箭侠第一季

Bacteria Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacter

发表于:2019-02-17 / 阅读(68) / 评论(0) 分类 双语有声阅读
学英语单词
a bene placito
ablaqueate
adolescent valley
alza
amynthas minimus
angle of total reflection
applicazioni
asado
at full strength
autoamplifies
bakero
bdis
beach transect
blow someone's brains out
bulgurs
calcic horizon
Capuron's points
card-tables
carragheenin
catalogue sale
Celadigal
centreless thread grinding
chocolate trees
chw
city-center
cleavaged
connecting rod scope
craighall
critically damped harmonic motion
cylinder bore gauge
drawing-instrument
drown one's troubles
E numbers
effective half-word
fat combustion
fingerbones
finite amplitude depth sonar
first heat of solution
flower
Fritham
genus pagophiluss
graph theory
ground cables
height of burst
hormone treatment
incidental matter
indulgenced
internal relation
interrupt isochronous
intrageneric
kaku
Kelaniya
kerneling
kill-
Killeagh
laings
Landoltia punctata
lens partical glaucoma
Leydig-cell tumor
logic board
modern ballet
more-expensive
neo colonialism
non-reactive power
Nonconforming Mortgage
orace
Oude IJssel
oxygen reduction
pariah
piroplasmotic
polyasparagines
pressure circulation lubricating system
radioactive dating
reperusals
ripping into
root canal cleaner
rotating converter
salt correction
Schwelm
serial time-sharing system
slip sheep
spave
splashed blood stain
spot height
sticheron
supervisory staff
swear to do
Taraxacum goloskokovii
tartarian aster
three-electrode system
throttleable
thrust clutch
tiled window
tomelukast
trefot
uncheckable
unrestrainedness
uses and gratifications theory
vibratory compaction
vignettes
wetland ecology
winged pigweeds