[化] 氰尿酰氯; 三聚氰酰氯; 三聚氯化氰

New Solar Cell Minimizes Environmental Risks in Manufacturing Process 新的太阳能电池减少生产中对环境的危害 Scientists in England report the development of a new solar cell that minimizes environmental risks in the manufacturing proc

发表于:2018-12-08 / 阅读(189) / 评论(0) 分类 VOA标准英语2014年(六月)

Serbia Declares 3 Days of Mourning for Flood Victims 塞尔维亚哀悼洪灾遇难者 Serbia has declared three days of mourning for more victims of the worst floods to hit the country in more than a century. Severe flooding this month has killed at

发表于:2019-01-14 / 阅读(274) / 评论(0) 分类 VOA标准英语2014年(五月)

DAVID GREENE, HOST: Families across the United States are fighting with the federal government over a deadly chemical. Dozens of people have died from inhaling methylene chloride. This is an ingredient in common paint removers. NPR's Rebecca Hersher

发表于:2019-01-17 / 阅读(195) / 评论(0) 分类 2018年NPR美国国家公共电台11月

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

发表于:2019-01-20 / 阅读(242) / 评论(0) 分类 2016年Scientific American(一)月

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(183) / 评论(0) 分类 自然百科2009年

Tony: Who did you invite over for dinner Saturday? Carmela: I invited Keith, Sung, Stephanie, and Luis. Tony: You didnt! Carmela: I did. Why? Tony: Youre going to have a hard time cooking for them. Keith is a vegan and only eats food thats organic. S

发表于:2019-02-04 / 阅读(170) / 评论(0) 分类 地道美语播客

First off, I'll mention that at the bottom of the sea there exist veins of zinc, iron, silver, and gold whose mining would quite certainly be feasible. 首先,我对您说,海底有锌、铁、银、金等矿藏,开发并不是不可能的事。

发表于:2019-02-25 / 阅读(311) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
access board
activity meter
advanced maneuver
aggressors
ambient condition
aortic glands
arc absorber
audio-amplifier
Austro-Malayan
break silence
buying for resale
cat crane
central milling system
claim jumpers
continuous dew-point recorder
corn distiller's dried grain
counter-signature
crash-lands
croing
current-source converter
DAEC
delta ferrite
detection of estrus
dew point
electric outlets
exchange rate misalignment
fatigabilities
fermentation alcohols
fissidens pellucidus
fog investigation dispersal operations
four-node oscillation
Galium minutissimum
gentleman of outs
glacial outwash
goranin
handicapped ramp
hathersages
hdbk.
hurricane globe
hut
hypophonia
indicated glass column
indigoferas
infrared desiccation
isochronal annealing
isohion
lining carrier
Lippmann effect
lipreading system
long-period superlattic
Luciani's thiads
Marquis's tests
martrix alloy
maximum relief percentage
memory use delta
metallity
metaphosphite
meter closing reading
metroclyst
microscopic constant
misremember
montanol
mooring line
MRHA
nitrosyl radical
octenniums
optical filter box
overshone
parallelism of agitator-hole flange
pendular fibroma
pilot door
political cooperation
prestaging
prolapse of ureter
quotations list
radical treatment in chronic case
raw vegetables
reversed phase thin layer plate
silicon fluorochlorobromide
Silver Solders
single atrium
St Catherine
step-out locking circuit
stiffening diaphragm
stopper handle
sufficient-reason
sunscreened
swampy land
symbolic-coding format
tack on something
thin-leaved stringybarks
timing belt
tiphia brevilineata formosana
to spring
total residue
transsexuals
underdahl
unmetalled
ununited fracture
wedge ring
widely open
xanthoproteic test