四氟化铬 {氟化铬(IV)}

[00:09.95]Six weeks ago, the movie Erin Brockovich opened the United States. [00:16.95]So far, it has earned at least 100,000,000 dollars. [00:22.47]It tells a true story about a young woman who helped people in a California town gain money from an e

发表于:2018-12-03 / 阅读(143) / 评论(0) 分类 标准美语发音的13个秘诀 CD4

Could an element commonly found in Americans` tap water caused cancer? A nonprofit environmental group is sounding the alarm about something called chromium-6. The U.S. government says high levels of it in the air can be carcinogenic, meaning they ca

发表于:2018-12-20 / 阅读(120) / 评论(0) 分类 CNN美国有线新闻2017年2月

Help! There's someone hurt! - What are you hearing, Sullivan? - According to first responders it was a bomb. - How many? - Four of yours and five passersby. - Have anyone claimed responsibility? - We found this. - Do you think she's dead? - We can't

发表于:2018-12-28 / 阅读(114) / 评论(0) 分类 英文电影预告片填空

AS IT IS 2013-05-23 Pollution Forces Residents from California Town Hello. Im Jim Tedder in Washington. Welcome to a special edition of As It Is. Seventeen years ago, an American energy company paid hundreds of millions of dollars to settle legal cla

发表于:2019-01-12 / 阅读(131) / 评论(0) 分类 2013年VOA慢速英语(六)月

JEFFREY BROWN:And now to part two of our investigative look at the safety of America's drinking water. Science correspondent Miles O'Brien reports on the toxic chemical made famous in the movie Erin Brockovich, its potentially harmful effect on human

发表于:2019-01-27 / 阅读(179) / 评论(0) 分类 PBS访谈环境系列

GWEN IFILL: Now NewsHour science correspondent Miles O'Brien begins a two-part look at America's drinking water, and the regulatory system that is supposed to guarantee its safety. His report is the result of a partnership with the Center for Public

发表于:2019-01-27 / 阅读(125) / 评论(0) 分类 PBS访谈环境系列

Why Stainless Steel Does Not Rust But Other Metals Do? 不锈钢(Stainless Steel)指耐空气、蒸汽、水等弱腐蚀介质和酸、碱、盐等化学浸蚀性介质腐蚀的钢,又称不锈耐酸钢。实际应用中,常将耐弱腐蚀介质

发表于:2019-02-24 / 阅读(175) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
.wcm
5-methoxygenistin-7-o-glucoside
Adml
allyl cinnamate
aminergic synapses
ammonium hydrogen tartrate
analysis of pharmaceutical dosage forms
anamorphous
Antrim Plat.
apex of posterior horn
arrobo
Artemisininum
ascogregarina armigerei
ballastingup
Beverley Grp.
bibliomania, bibliomane
Bondronat
ceroplastes floridensis comstock
channel noise
cloud infrastructure
cross connected generator
dark-meat
dense phase
diabatic term
Diana
diazines
differential piston pump
drawn to scale
elet
ence
energy intensive
eucalyptus rostratas
filament crystal
forward flexion
geometric probability theory
glance sideways
glomus (pl. glomera)
granulated potatoes
H. J. Eysenck
homeologs
horatian odes
hunt saboteurs
hydrosoma
identification generator
ignitor electrode
information logical machine
initialism
IUNS
kato
low-voltage electrophoresis
mackinaw skiffs
Massengo
medical rubber cloth
meta-compounds
milecastles
moist state debranning step
monometric equivalent
moustick
musculi iliopsoas
nansei-shoto (ryukyu is.)
nonobjectives
nonrobbery
nuku
obstructive sleep apnoea
oceanic river
oothecin
periodic tapping system
personal liability
personality-types
philosophise
photocell light check
physical kinetics
pipe-ventilated motor
post-officer
precession of equinoxes
projecting eaves
quality of a lot
read cycle
remansion
resistance heated boiler
seed loading
sermonizers
shock heat
smirring
snorklings
social media
special purpose belt sander
step-by-step excitation
strength calculation of large opening ship
stroyer
Sunday observance
tacamahac
tray aerator
trigraphic
Uftyuga
unosom
vildly
volcanic plume
web journalist
whitebird
women's suffrage
yantra raja (india)