分子放大

Splendid! He kept his telescopic cameras carefully aimedglued to their moving objective; 精彩片他小心地调着望远摄影机的镜头,盯紧了那移动着的对象。 clapped on a higher power to get a close-up of the frantic and distorted

发表于:2018-12-07 / 阅读(56) / 评论(0) 分类 美丽新世界

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

This is Scientific American's 60s Science. I'm Karen Hopkin. This will just take a minute. Think about the tools used by biologists, perhaps test tubes and microscopes come to mind. But what about diapers? No, it's not the investigators in their work

发表于:2018-12-24 / 阅读(28) / 评论(0) 分类 2015年Scientific American(一)月

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(65) / 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(38) / 评论(0) 分类 TED演讲国际问题篇
学英语单词
18-hydroxycortisol
accumulator bet
adeems
air alert warning
Altay, Respulika
antelope jack rabbit
assache
atelopodia
averagelife period
base of brain
bathysphyraenops simplex
benzylpyrroles
Cephalina
conceptual plan
cone sheets
controllable pitch airscrew
crystalloid
cubic lattice cell
data flow semantics
diagonal thrust
early postmortem phenomena
electron excited x-ray fluorescence spectrometry
even day
extended operator commend
fan test
farallones
flexible wing
folk-rockers
forfeiture of lnad
Fournier, C.
frost street
full inversion
gouy cell
ground plot
Hesperinidae
honey crisps
hose-apparatus
hybrid thin-film circuit
Illicium philippinense
implied renunciation
import licence system
imputations
imputers
interference of equal inclination
invoice mass
isometric-projection
jawin
kalachuri
large cell auditory nuclei
left hand digit
light flint glass
ligula
Loran table
nano2
nerdism
neuromolecular
nitrate reduction test
Oom Paul Kruger
operational speed of a computer
passericidal
passers by
preceder
prenotify
programmable logic module
propyl sulfone
radial diffusion coefficient
Raquette Lake
reverberatory circuit
revolutions per minute indicator
run-in groove
salamander stove
samarous chloride
Sardegna
search-and-rescue spacecraft
selling out
set-point hairline
single-fraction
stances
standard orthogonal basis
Stara Planina
stroudleys
subpotent
subpubic hernia
sulcus medianus posterior medullae spinalis
system test and evaluation plan
takeoff clearance
telltale pipe
the Qur'an
titanium carbonitride coating
tonoscillograph
topophobia
tracking lidar
unclear
unfooling
ungraded room
V.T.
Ves.
white musle
wood-and-metal
Yuiko
Zolotkovo