毫米波天线

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(69) / 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(64) / 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(35) / 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(65) / 评论(0) 分类 双语有声阅读
学英语单词
acetylcholine receptors
actinograph
ACU-dyoe
administration server database
agatiform
American Petroleum Institute Scale
amplifier kit
anticonstitutionalist
ardea purpurea manilensis
asceua japonica
azygo-
ballin
band, carrier
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bludgeonings
burried
call to remembrance
Cernay-en-Dormois
Cocos(Keeling) Rise
compound machine
consessive
contact area pressure
continental air mass
cossy
crystal-lattice filter
cut searching method
cytophysical
dawson's integral
day labo(u)rer
dilleniidaes
Embattle Seamount
equal and opposite
especficamente
faciocephalalgia
feather-duster worm
fingernails
flat-bottomed bin
fleyl
GCGC
gelatin dessert
grey absorber
Hegazy
hyperpermeability
idle rod
in financial straits
in thought
Intercity Train
judicial trustee
lacticaemia
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laryngorrhea
loan at call
lower extremities
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MSLA
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natural soft porcelain
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on sales
on-sight
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parabenzoquinone
particle track
pepper bush
perforate column
Phlomis tuberosa
photographic record
Port de Mesnard
portable conveyer
press clipping
productivity of floor planer
prototype missile
protozoa rate
quasi-loans
rated alternating-current winding voltage
rearrival
sampling holder
setting
side lobe cancellation
Sjulsåsen
sound knot
southdale
staircase effect
stallen
surface smears
surface thermodynamics
swag-belly
synclonus beriberica
tabuk
telex over radio
terminal flight
thermal mineral water
thermoresponsive
timing operations centre
underlying colour
vena supraorbitalis
walker crank
weak sun paradox
went over the top
Whiteside test
yankee corns
yloste