氯化物排出性状

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(59) / 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(107) / 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(64) / 评论(0) 分类 自然百科2009年

今天我们要学的词是trait。 Trait, 特征。 A new study in South Korea shows that 1 in 38 children have traits of autism, 韩国一项最新研究显示,每38个孩子里就有一个孩子带有自闭症的特征。 Two-thirds of the child

发表于:2019-02-02 / 阅读(28) / 评论(0) 分类 英语单词荟萃

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(55) / 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(119) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
ablins
Alisma plantago-aquatica L.
Alkmaar
ampliscript
AOB
atrophia senilis
autohistotherapy
batching oil
blue lotus
Brace prism
caking with strong-expansion and fusion
chinese impact printer
chlamydospores
common entrance examination
compressed-air distributor
copper gold
crowing inspiration
crystal whisker
curtailer
cut-section of a track circuit
de-coupling
decapod
demetaphorizing
design environmental conditions
drain of capital
energy of thermal motion
erythrosine soldium salt
Fiordland penguin
freedom of press
fullparticle
genus todeas
gns reconstruction theorem gns
granular cell
halobacteriums
hard-edge
how to copy a file
hygropoda higenaga
incidence of tax
inductive phase
initial species
intercompany sales
intranuclear chromosomal fibers
jesmine
jolies
keep improving
keratoid
land tractor
Landau length
Limbu
linemen's pliers
linguistic variables
load inclination
lolion
macroglobulinemias
maji
mass pair attenuation coefficient
matrix material
meathead
mesophilous tree species
metaframeworks
microeconomies
mill price
moderate temperature hydrogenation
month-in
motor-converter
neodymium-doped
newsplay
nitrogen guano
on full cock
orcharded
outer edge
permeabilities
permittivity measurement
phase failure protection
photographic reduction
proton radioactivity
puronine
Rejection Front
revolvingarmature
saddle control
scunges
secombe
sender's address
servo computer
sharp contrast
shipboard computer
slizzard
smails
snowberry
spindliness
straight cup wheel
subscapulary
summary analysis
superprime
switch and search capability
tank toggle
to grasp the nettle
towner
transmission speed
user friendliness
vaster
willeful