激光诱变育种

By Carol Pearson Washington 30 April 2008 Ten years ago, the U.S. Food and Drug Administration approved LASIK, eye surgery with a laser that enables people to see without glasses. But about five percent of LASIK procedures fail, and those patients ca

发表于:2018-12-08 / 阅读(54) / 评论(0) 分类 VOA常速英语2008年(四月)

EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can

发表于:2018-12-16 / 阅读(53) / 评论(0) 分类 2013年VOA慢速英语(二)月

The United States Navy has demonstrated a new laser weapon operating in the Persian Gulf. The Laser Weapons System, or LaWS, is deployed on the USS Ponce transport ship. A live test firing of the weapon was recently carried out for Cable News Network

发表于:2019-01-02 / 阅读(62) / 评论(0) 分类 2017年VOA慢速英语(七)月

Scientists have identified a unique genetic mutation in about 10 percent of people with type 2 diabetes(糖尿病) studied in the United States and Europe. The discovery could help some people learn if they are at risk of developing diabetes so they

发表于:2019-01-11 / 阅读(86) / 评论(0) 分类 英语新闻

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(70) / 评论(0) 分类 VOA常速英语2007年(十一月)

The International Atomic Energy Agency is making a push for an unusual type of technology, using radiation to produce higher yielding and hardier plants. Lisa Bryant has more on the technology that the IAEA says could help reduce hunger affecting mi

发表于:2019-02-06 / 阅读(57) / 评论(0) 分类 VOA标准英语2008年(十二月)
学英语单词
absolute unit system
ACK0
allelomorphic
application valve body
arctostaphyloss
aspirating screen
atom-smashing
Automeris io
Ayer Lilam, Sungai
barbane
Barnes's dystrophy
batch caustic refining
between the beetle and the block
binary cycle fluid
boat-races
butadiene-styrene-acrylonitrile polymerization
Centipeda minima
Chlamydia trachomatis
coenogenetic character
coherent derived unit
cold subcritical condition
collect on delivery
combined logic function
common tarweeds
crinkleroot
cruisier
didymobotryum elatostematis
feeler bar slide
flouteth
format up bars
fountain type
friction glazed machine
Fudithion
gear shift lever dust cap
GM
GONGOs
grounded parts
hamming
hanging curve
his heels
hypertravel
i.b.m
impact viscosity
inseparation
kittay
kralastic
lay sth off
Leptoglossus
less-powerful
linear sets intersection
livro
log-normal probabililty density
longitudinal resistivity
loop phase-locking
m chromosome
medium speed diesel engine
Medvezhiy, Ostrov
metering spill valve
Microellobosporia
milano rib
motorneurones
mould boardless plough
musculi viscerum
Norheparin
oblique tergals muscle
one-by-one feeding
outpourers
permanent swap file
plug in type fuse
potassium secondary arsenate
power hunger
quantitative social research
quarry-faced stone
quinare
railway telegraph
refrachor
reserve for renewals and replacements
ribonucleic acid
role ambiguity
semelaspidus mangiferae
semiographic
serial terminal
shende
Shoalhaven R.
signal synchronization
slabbish
spazzin'
special colo(u)r-index
square lashing
start/stop system
stathely
subjugable
tacoma
takeoff gross weight
talking
taper
towered above
tsutsugamushi
valence quark
vestibule lamp
waiting alone