头灯反射镜

The Aldens worked on the maze for most of the day. Mr. Sweeney cut posts of wood, then Violet and Benny lined them up where they needed to go. Henry and Jessie stapled chicken wire fencing from post to post. And everyone attached cornstalks into the

发表于:2018-12-06 / 阅读(124) / 评论(0) 分类 101 The Clue in the Corn Maze

In 1970, the Soviet Union put a laser reflector on the moon, carried by a rover. A few months later, it disappeared. Some speculated that the rover had fallen into a crater or parked in such a way as to render the reflector inaccessible. Now after 40

发表于:2018-12-24 / 阅读(155) / 评论(0) 分类 Scientific American(四)月

Amanandhissonwereridinginthecar. Themansaidtohisson,Couldyoucheckandseeifthedirectionlightsareworkingonyoursideofthecar? Hissonlookedoutthewindowandsaid,Yes,no,yes,no,yes,no,yes,no... Notes: 1.Amanandhissonwereridinginthecar. 有一个男人和他儿子

发表于:2018-12-26 / 阅读(138) / 评论(0) 分类 英语笑话(MP3+文本)

据《科学》杂志报道,苏联的月球车40年前在月球表面留下了激光反射器,虽然经过多年的搜寻科学家始终没有发现激光反射器的踪迹。 4月22日,一组物理学家终于发现了来自反射器的微弱闪

发表于:2019-01-02 / 阅读(171) / 评论(0) 分类 60秒科学

Gain - This is an increase in signal power, due to a boost from an electronic device. Garbage - These are unwanted characters that appear because of either incorrect settings or noise. Gate - These ar

发表于:2019-01-03 / 阅读(151) / 评论(0) 分类 电信英语

The Five-hundred-meter wide Aperture Spherical Telescope, or FAST, is now operational in the mountains of Guizhou in southwest China. FAST has been designed to help Chinese researchers better understand our universe, as well as probe the cosmos for e

发表于:2019-01-19 / 阅读(173) / 评论(0) 分类 2016CRI中国国际广播电台

Bart's upstairs neighbor was driving him nuts. He made all kinds of strange noises at all kinds of strange hours. If I tell my neighbor he's noisy, he won't believe me, Bart thought. He'll believe me only if he lives downstairs and hears himself upst

发表于:2019-01-22 / 阅读(135) / 评论(0) 分类 英文短篇故事(纽约)

By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti

发表于:2019-01-31 / 阅读(165) / 评论(0) 分类 VOA常速英语2007年(十一月)

The construction of the project was started in 2011 with an investment of 1.2-billion yuan, or about 180 million US dollars. The 500 metre Aperture Spherical Telescope, or FAST, is the size of 30 football fields. It's located in a hollow that was for

发表于:2019-02-21 / 阅读(198) / 评论(0) 分类 2016CRI中国国际广播电台
学英语单词
ammine ammonation
AND-NOT operation
bachelor's buttons
Bacillus mesentericus vulgatus
belts
betsko
call at a port
caustic lime mud
chromosomal disorder
closing-downs
concentration of stacking faults
constant current transformator
convivencia
counterguerrilla warfare
crimp mesh
dapperness
DC component of short-circuit current
deionization plant
DELTASE
downcomer space
east lothian (haddington)
elephant's peel
endonormative
excess fifty code
exosubstance
extrusion transformation
fascia colli superficialis
filler absorption
for one reason or another
four-wheel drive truck
funiculus anterius medullae spinalis
Gauss' elimination method
government broadcasting
group orbital
hadara
Haemaphysalis bispinosa
handmakes
hilly city
hot-wire ammeter
hydes
hydrogen charging
IL-IRa
instancies
inter-ionic distance
internal-external expectation
jarvey
kossovo
leatherheads
leschly
longitudinal lamella
magnetic read-write head
methacrylaldehyde
monetary loss on noncurrent monetary assets
multiple-gun cathode-ray tube
Mutilla
New Jersey, State of
nodal rhythms
normal budget
open wet-bottom furnace
operating readiness
panarthropod
pancettas
PD (pulse duration)
piping color
plating of cultures
play hockey
Portugeezers
pseudocopula
pull oneself together
Qormi(Curmi)
rated contact voltage
remote attack
revana
ring sinus
sawdant
screening method
scrollable field
sea water distillate plant
sealed construction
semiconductor distributed bragg reflector (dbr)
single wireway destruction
sky wave effect
soniferous
sound insulating structure
spillages
stable star
stanga
steel man
stock gauge
straight side press
tax on imports
technological instruction
test data generation
time history response analysis
tool-post ring
Trigonella fimbriata
tui chiao wu
ulvaceous
und
wardriver
whole egg with sugar
Yaguaneque