硝化淀粉炸药

IN THE NEWS - Missing Explosives in Iraq By Cynthia Kirk Broadcast: Saturday, October 30, 2004 This is Steve Ember with In the News in VOA Special English. On Monday, the United Nations nuclear agency

发表于:2019-01-02 / 阅读(48) / 评论(0) 分类 教育与新闻

RANDI KAYE, CNN CORRESPONDENT: We take our shoes off, remove our laptops, and toss our bottled water all in the name of safety. But are we any safer today than we were before 9/11? Not exactly, says Bruce Schneier, author and security technologist. B

发表于:2019-01-08 / 阅读(125) / 评论(0) 分类 CNN2010年(一)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(78) / 评论(0) 分类 Scientific American(九)月

[00:01.56]Gunpowder [00:03.47]Gunpowder was invented by the Chinese [00:05.73]in the eighth century AD. [00:08.28]Early Chinese scientists discovered [00:10.64]that they could make an explosive substance [00:12.76]by mixing sulphur,charcoal and saltp

发表于:2019-01-10 / 阅读(168) / 评论(0) 分类 北师大版高中英语模块7(选修)

Independence Day 词汇典故:独立日 Hello and welcome to the VOA Learning English program Words and Their Stories. Independence Day is a huge celebration in the United States. People celebrate by having parades and picnics and usually end the day

发表于:2019-01-12 / 阅读(42) / 评论(0) 分类 2015年VOA慢速英语(七)月

萨拉热窝市中心爆炸,无一人伤亡 SARAJEVO, Feb. 10 (Xinhua) -- A huge explosion was heard in central Sarajevo Monday night, and police said there were no injuries. A local police press officer told Xinhua the explosion occurred at the en

发表于:2019-02-05 / 阅读(53) / 评论(0) 分类 英语新闻
学英语单词
acoustic condition
acquisition cost of house
African greenheart
agelessness
AHTCG
anagrammatists
appendicolysis
astrocele
baraminology
be open to dispute
BICR
breathability
cane sugar manufacture
center gutter
coapplying
Cockenheugh
construction budget
crisp bread
cyclolysis
cymatiums
dendritic evolution
detraditionalize
discrase (dyscrasite)
emergency lamp
enzyme digestion
error of zero point
etched mirror lasers
exchange cations
exum
fibrillar crystal
filmmaking
fisheries conservation
fluor-spar
hard boil
heel-and-toe watches
hereditary sweat gland disorder
indexable turning tool
Indian darter
jus.
knob fastener
kruegers
laney
leful
leucoerythroblastic
line span
lipochrome
Mac desktop
Mach hold mode
make right
Manhung-dong
mass maintenance
matatabiol
matric potential
mosaic equilibrium
multiple scale problem
mutation index
mutually-exclusive option
national advertising
need of growth
negative prescription
newish
non-elastic collision
noncommuter
O,O-dimethyldithiophosphoric acid
of less importance
one - armed bandits
open butt joint
outjockey
ovary cyst
oxidizer pump impeller
packing retainer spring
Petaurista
phanom
phytocarotenoid
pnenmatic caulking tool
potassium adsorption ratio
power balance equation
prinia criniger striata
producer's goods
prognathous type
pulsed magnetron
recluce
requalify
retroparotid
rutile type electrode
sack stacker
seek redress
straplines
Stratum circulare
strype
sunken rowlock
suryas
topognoses
tow beam
traction by pulling and extension
trade cycles
unload database
unpreparation
vacuum ultraviolet radiation
vibration testing machine
Vidhidalsfjall
volodyas