氯化氢採样组装

Worlds First Hydrogen Trains Launch in Germany The worlds first hydrogen-powered trains have begun running in Germany. They began carrying passengers Monday in Germanys northern Lower Saxony state. The new trains will run 100-kilometer trips and can

发表于:2019-01-03 / 阅读(35) / 评论(0) 分类 2018年VOA慢速英语(九)月

Imagine a nearly silent train that glides along its tracks emitting nothing more toxic than water. 想象一下,一辆火车消无声息地沿着铁轨运行,排放物中的有毒物质不过是水。 That train is a reality. 这种火车是真实存

发表于:2019-01-07 / 阅读(34) / 评论(0) 分类 英语新闻

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

发表于:2019-02-01 / 阅读(68) / 评论(0) 分类 财会英语

It's a stat that gets bounced around as e-mail-forward wisdom: men think about sex every seven seconds. Even when the idea lacks this mythical specificity and grandiosity (that's 7,200 times a day!), the idea that men think about sex basically all th

发表于:2019-02-17 / 阅读(48) / 评论(0) 分类 阅读空间

natality 生育 fertility 生育率 fecundity 生育能力 birth rate, natality rate 出生率 births 出生人数 parity 胎次 premature birth 早产 life birth 活产 stillbirth 死产 birth peaks 出生高峰 mortality 死亡 mortality rate 死亡率

发表于:2019-02-18 / 阅读(58) / 评论(0) 分类 实用英语
学英语单词
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2-isopropyl-5-methylbenzoquinone
alphabetic script
anilino
atypical verrucous endocarditis
autorotationspeed
available pressure head in the consumer
axial triradius
bainton
bismuthites
bispectrality
black elders
blowfish
bone-whites
Broughty Ferry
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camorta i.
cathode phase inverter
cathode-base amplifier
Chatenoy
community fund campaign
composite drawing
computing science
coubrough process
crude extract
DC permanent-magnet tacho-generator
delustered finish
desiderant
drilled in
ears of wheat
estimator of mean
Etorofu
Evans diagram
external auditing
fanart
for rent
genus Perdix
glass bulb forming machine
Gyalectales
habitual loudness level
half adder
high-gi
insecticidal activity
investing cartilage
iodopsin
Kulanotpes
leafful
Lespedeza viatorum
lifting appliance
local authorities
malagarasi
mangrove forest?
manicas
many-valley model
milling machine with universal turret head machine
mithramycins
monohydric orthoarsenate
mountain sicknesses
neural cybernetics
nmtr
no-comments
nonantagonistic contradiction
nooo
peyroux
photoblepharons
plastogel coating
porosity measurement
praseodymium hydroxide
primary bone
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radiation warning assembly
rare-earth complex
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release ampere turn
ribosome
rule based production system
rupps
serpentinus
set difference
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subsurface atom
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Tanabu
tapioca pudding
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the primrose path
throwers
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triflyl azide
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walking cane
water use coefficient
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