音标:[ˌekspəuˈnenʃəl ˌæmpləfɪˈkeɪʃən] ;
[医]指数式扩增(分)

BBC News with Julia Candler. A senior member of North Koreas government has warned that his country would react with a pre-emptive nuclear strike if it saw signs that the US was preparing to launch an attack. Speaking to the BBC, the Vice Foreign Min

发表于:2018-12-20 / 阅读(47) / 评论(0) 分类 中英双语新闻

A couple of years ago when I was attending the TED Conference in Long Beach, 几年前我参加在长滩TED会议的时候, I met Harriet. 我遇到了哈里特。 We'd actually met online before not the way you're thinking. 实际上我们以前在网

发表于:2019-01-03 / 阅读(47) / 评论(0) 分类 TED演讲科学篇

分集介绍:指数,log,对数微分;双曲函数 Exponential.and.log.Logarithmic.differentiation;.hyperbolic.functions

发表于:2019-01-05 / 阅读(337) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

PCRthe polymerase chain reactionis a crucial tool. The DNA amplification technique is used in genome sequencing, forensics and the diagnosis of various diseases. To give researchers more genetic material to work with, a PCR instrument repeatedly heat

发表于:2019-01-08 / 阅读(49) / 评论(0) 分类 Scientific American(十)月

This is Scientific American 60 Second Science, I am Karen Hopkin, this will just take a minute. Every year, about 10 million tons of paper winds up in American landfills and incinerators, which is not only wasteful but adds CO2 to the atmosphere. Rec

发表于:2019-01-08 / 阅读(70) / 评论(0) 分类 Scientific American(三)月

Because of course, the ear is, I mean, subject to all sorts of things. 这当然是因为,我是说,耳朵受制于很多因素。 The room we happen to be in, the amplification, the quality of the instrument,the type of sticks...etc., etc. 我们现

发表于:2019-01-18 / 阅读(39) / 评论(0) 分类 TED演讲国际问题篇
学英语单词
add on something
artificial anatomy
artificial ventilator
ballygalleys
bilateral import quota
boost morale
brakebill
Coltromy
congestive renal damage
core-spun elastic yarn
crude oil emulsion
customary pricing
cyclohexylbutyrate
decision on the marine accident
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dose-maximalis
dynamically loaded plain bearing
effluent control
electroresistance alloy
elongatoolithid
fog wind
funiculi of spinal cord
genus pavonias
give someone a bloody nose
give you the shivers
group file
group-hunting
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headset jack
herringbone patterns
holotyphlon
idleman
imf institute
implosion wave
in the past
jaana
lemert
like better
liquid extract of liquorice
lithium nephropathy
loop projector
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Mucuna macrobotrys
mustism
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natural circulation in reactor
nickin'
no better than she should be
nonacceptances
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orange-colored
Osbeckia rhopalotricha
Pars profunda
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quaff
queer for something
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reserve service
rest on one's arms
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road test method of smoke measurement
run a cold bath
say in sport
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sergolexole
session protocol data unit (spdu)
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T.R.
technical provisions
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tomosvaryella spiculata
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tyre bag
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voluntary control of fertility
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