[化] 氯化铈

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(131) / 评论(0) 分类 VOA标准英语2014年(六月)

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(122) / 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(176) / 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(122) / 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(121) / 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(207) / 评论(0) 分类 《海底两万里》中英双语有声读物
学英语单词
accumulator cell
acquitter
arithmogram
arnaut
be up to putty
blue-strped runner
c sizes
cataclastic metamorphism
cathode ray accelerator
chloracetamide
Chloroflexaceae
chromosomal mutations
chromotherapy
city ecological system
class F insulating material
coccyx (or urostyle)
conditional AND operator
conjunctival layer of bulb
contract for settlement
counter-current process
Cunb.
daily deductible
day-scholar
Dimethogen
direct indecomposable group
Drunupal
ELAEOS
eradicate
fancy blanket
filmless spark chamber
five partition support
frame alignment signal
futchers
gaslamp
honor a debt in advance
hydrofoil vessel
hypobaropathy
idawang
imperfectness
inbring
Kodang
La Piedad
lay-soil
lemen
leslye
liabilities for guarantee
little pitchers
make a noise about sth
malting floor
maxillofrontale
mesothecium
methylene aniline
modified polypheylene oxide
NAD-pyrophosphorylase
native languages
nicomol
night reconnaissance airplane
no-stops
older women
overwarms
Pajot's maneuver
POOL-T
poorly-paid
potassium red peroxochromate
precluded
prepad acid fracturing
prorupted
quartermasters-general
quasi-molecular state
radio active constant
refineries
remittors
Rice University
rock-drills
safety clothes
scan-based
scrimping bar
self-destruction
shammies
sheet-rolling mill
shiny side
sigmoid vein
single-point operation
spiking
stephenson's valve gear
subarid plantation
sunbursts
system of macroeconomic management
system operating department
talk man
tank railway car
thick blood film method
thin captain
timing signals
tons
tpm (total productive maintenance)
treesful
tweezes
Valvisisporites
Walberswick
whippoorwill