氯离子浓度异常

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(105) / 评论(0) 分类 VOA标准英语2014年(六月)

This pump has been changed out before. This is the starboard side. Back in August of 2010, we did a pump rr for a different failure. That was actually a failure of the pump. This is a valve inside the pump module itself. And so, this particular pump

发表于:2018-12-15 / 阅读(141) / 评论(0) 分类 美联社新闻一分钟2013(十二月)

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(96) / 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(143) / 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(105) / 评论(0) 分类 自然百科2009年

In polar regions where the magnetic field is / weakest, auroras glow in the sky. These dazzling displays of colored lights form when solar particles slam into gases in our atmosphere causing them to glow. The stronger the solar wind, the more dramati

发表于:2019-01-22 / 阅读(88) / 评论(0) 分类 自然百科2011年

Blockson's computer model reveals that at the South Atlantic Anomaly, the magnetic field isn't just weaker than anywhere else on the planet. It's actually reversed polarity. There is a patch on the core in the South Atlantic where things are not poin

发表于:2019-01-22 / 阅读(88) / 评论(0) 分类 自然百科2011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(96) / 评论(0) 分类 地道美语播客

LOS ANGELES, Oct. 31 (Xinhua) -- A passenger rocket plane developed by Virgin Galactic's crashed on Friday after suffering an in-flight anomaly during a powered test flight over the U.S. state of California, the commercial company said on Twitter. 新华

发表于:2019-02-05 / 阅读(130) / 评论(0) 分类 英语新闻

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(171) / 评论(0) 分类 《海底两万里》中英双语有声读物

[00:27.68]checkmate 将军! [00:32.28]again?! 又来?! [00:32.64]Obviously,you're not well suited for three-dimensional chess. 很显然 你不适合玩三维国际象棋 [00:36.84]Perhaps three-dimensional candy land would be more your speed. 你的水

发表于:2019-03-16 / 阅读(294) / 评论(0) 分类 听电影学英语-生活大爆炸
学英语单词
Aicardi syndrome
alexander
antasthmatic
Bandoeng
bartoanglesite
best-fit strategy
big-star
birdseye maple
blastophthoria
board of arbitration
carbodiimides
cellular therapy
chovr
cilium (pl. cilia)
clinkering zone
compact-disk read-only memory
conveying chain
Cortinellus
crimped brass wire cup wheel
cuadro berregas
cypress pines
Derby Center
dipalmitostearin
earth-mass
Edgerton, Harold
elected
eluards
empyreuma
equal settlement plane
equivalent hull girder
erythematous combustion
experimental thermochemistry
feel satisfaction at
figured silk
flexible air pipe
follow-up valve
Gram-negative cocci and coccobacilli
graphical methods
Guanmanning
haploidy
hartford ballet
healthcare organization
hereditary tyrosinemia
hexagonal bipyramid
hot mess
IHRB
issuance of preferred stock
jet tab
kliine
knock someone cold
l.h.
landslide area
love lyrics
Low price
low-pressure steam engine
manufacturing facilities
Marps
material quality cost
melampsora ricini de tonl.
milincic
minicomputer routine
Mkasi
modern communication technique
multifunction rotary switches
navman
organic silicon compound
party-line telephone
Pattikonda
pesan
plastic faced die
platylobum
policy advice
Portland I.
protocol conversion box
pulse carrier
rat-interferon
readiness monitoring operation
revelation light
rotating scoop
s arrest
Santee Dakota
sleuthed
slotless magnetron
sphenocephalus
sths
supersonic heavy fighter
terminal of circuit
test soiutions
tiffins
tin finish
top tension
triynes
trypsinisation
vlatkovic
voltage pulsating factor
waste-heat loop
watch keeping cabin
wealdend
wire-wound furnace
XRM