[化] 酰基氯; 氯化酰基
[医] 酰基氯

Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J

发表于:2018-12-07 / 阅读(145) / 评论(0) 分类 (科普英语)Earth and Sky

How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

发表于:2019-01-02 / 阅读(179) / 评论(0) 分类 知性英语

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(105) / 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(60) / 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(54) / 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(117) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
a fat lip
additional band
ADI scheme
ADL (annual dose limit)
allopropylbarbital
alloy for dental amalgam
an chih nu
Anniston
annoyously
Arrabidaea
automatic sequence-controlled
Billingsellacea
black bread
brige-control cord circuit
callose platelet
circumlucid
civic design
colobuss
condensed deck
conservative-liberal
constant-voltage charging
construction estimate
continuous magnetic surface recording media
contribution pricing
counter advertising
Danissa Hills
deinstallation
demagnetizing ampere-turn
derichment
digital function unit
direct attack
equal intercept restriction
equipment of ship
Fjelstrup
gatfields
glancy
grease paint dermatitis
gunhilds
helical end mill
hematopoietics
high temperature crcible
hochman
hydroblepharon
illam
interrupt acknowledge
intraoral squamous carcinoma
intreasured
J-bar lift
kimmy
lakhani
lifting piston
magnitude portion
Mahumetane
mechanical pencil
mellinson
meprednisone
mesh wire
metamorphosizing
miscommunicate
mugler
multitheism
mycoplasma caviae
neovirion
no wonder
nonamidated
nonbrowning micro objective
not even a dog's chance
odontoradiography
ophichthus erabo
Orotyl
overweighed
person on watch
pheneticist
potboil
presumingly
probasidia
promethis piluensis
pseudocercospora aleuritis
punkiness
ratiocinant
reactor cooling temperature
recessus opticus
reliable transfer service
results set
reutters
right of habitation
risamicin
ruggedized machine
selective-term liver transplantation
semireflection
ship's
shock-compression curve
surface rejuvenation
swishily
teraflops
thin walled
tosylchloramide
transducer face velocity
Unif.
unrequisitioned
vibrophonocardiograph
wipes down