氦质谱仪法

[00:01.84]Hey, I'm gonna take care of you. 我会照顾你 [00:05.04]I've got a job on an oil rig. No sweat. 我在加油站有份工 [00:07.20]I'm taking you along. Okay? 你也一起去吧 [00:10.68]Come on. Get your bags packed. 快收拾行李 [0

发表于:2018-12-07 / 阅读(116) / 评论(0) 分类 听电影学英语-碧海蓝天

Last July, Kent Couch, a gas station owner from Bend, Oregon tied 105 helium-filled balloons to a lawn chair and took off. It was beautiful; it was a dream. For 9 hours and 193 miles, it was the fulfillment of a childhood dream. But with dangerous c

发表于:2018-12-11 / 阅读(52) / 评论(0) 分类 访谈录2008

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-12 / 阅读(96) / 评论(0) 分类 英语小短文

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the

发表于:2018-12-15 / 阅读(177) / 评论(0) 分类 新东方背诵文选

This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. One of the problems with large-scale solar power plants is that they require a huge amount of space. To rise above that problem Israeli researchers rece

发表于:2018-12-24 / 阅读(88) / 评论(0) 分类 Scientific American(三)月

02A Birthday Party GLOSSARY last minute the latest possible time before something happens; without very much notice before something happens* We wanted to go to the movies together, but at the last minute, Becca decidednot to go because she had a hea

发表于:2018-12-26 / 阅读(80) / 评论(0) 分类 2007年ESL之日常生活

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-30 / 阅读(68) / 评论(0) 分类 考研背诵50篇

His dad liked to fly balloons. His dad bought big balloons and filled them with helium. Helium is a gas. It is a gas that makes balloons float into the sky. One day his dad brought home a new balloon. He took it out of the box. He took it outside. He

发表于:2019-01-02 / 阅读(82) / 评论(0) 分类 超级简单英语阅读

1. Five people are dead after an unsuccessful emergency landing in Sanford, Florida, setting two houses on fire. The husband of a top NASCAR official and a company pilot are among the dead. An adult and two children who were in their homes were also

发表于:2019-01-08 / 阅读(114) / 评论(0) 分类 美联社新闻一分钟2007

The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-01-08 / 阅读(130) / 评论(0) 分类 英语小短文

Children Learn to Play Music by Listening in Suzuki Method Five-year-old Hannah Mei Steury started violin lessons two months ago. Her teacher, Stephanie Flack, says Twinkle, Twinkle Little Star is the first song children learn to play. Its a very sim

发表于:2019-01-13 / 阅读(96) / 评论(0) 分类 VOA标准英语2012年(七月)

In its angry old age, the Sun will show no mercy even to its favorite child.And the Earth disappears into the Sun, and i'm afraid that's curtains for the Earth. Our planet will be engulfed by a ball of fiery gases, never to be seen again, the star th

发表于:2019-01-23 / 阅读(76) / 评论(0) 分类 探索与发现2015年

This tiny companion to the bright Dog Star, was dubbed the pup. And by 1922, this new type of the star had an official classification. It was called a white dwarf. But naming it was the least of scientists problems. When they compared its size to its

发表于:2019-01-23 / 阅读(73) / 评论(0) 分类 探索与发现2015年

His dad liked to fly balloons. His dad bought big balloons and filled them with helium. Helium is a gas. It is a gas that makes balloons float into the sky. One day his dad brought home a new balloon. He took it out of the box. He took it outside. He

发表于:2019-01-24 / 阅读(116) / 评论(0) 分类 英语第1级听力-English Level 1

Questions 12-20 The elements other than hydrogen and helium exist In such small quantities that it is accurate to say that the universe somewhat more than 25 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measur

发表于:2019-02-05 / 阅读(109) / 评论(0) 分类 托福英语

Let's begin by winding the timeline back 13.7 billion years, to the beginning of time. 让我们把时间往回拨到137亿年前,也就是时间的开始。 Around us, there's nothing. There's not even time or space. 四周是什么也没有,根本

发表于:2019-02-14 / 阅读(64) / 评论(0) 分类 TED演讲教育篇

It's so..you know there are so many bullies,and it goes on so much 现在有很多恃强凌弱者 这种事情经常发生 and you know I think that, you should,especially if you are like a bystander. 我觉得,有些人应该, 特别是如果你就

发表于:2019-02-22 / 阅读(60) / 评论(0) 分类 艾伦脱口秀

What makes the sun shine? For a lot of folks, this is the kind of thing that doesn't even require explanation: it just does. But just being a commonplace phenomenon in no way explains it. Something must cause the sun to shine. And, in fact, there is

发表于:2019-02-23 / 阅读(92) / 评论(0) 分类 英语时差8,16

BMI stands for Body Mass Index, and it's a way to estimate whether or not an adult is over or under weight for his or her height. No equipment is necessary. You can figure out your BMI at home with a calculator. You multiply your weight in pounds by

发表于:2019-02-23 / 阅读(76) / 评论(0) 分类 英语时差8,16

Over the lights of sunset and vine We're floating away From the fortune and fame And your lips are mine They're raspberry wine Your body's a map I will follow into the sky Cause what you got Is all that I want It's all that I want And still that's no

发表于:2019-02-26 / 阅读(87) / 评论(0) 分类 美国乡村音乐
学英语单词
alaskane
antebellum
apoxesis
apple turnover
aquabib
Arago's rotation
articulatin
Avaxim
bagpiper
balseria (panama)
beauseigneur
bone mineral
brachial fold
Brekken
Brunei Town
built-in error correction
catchcries
centuplications
Chagos Trench
chart level
circlec method
content element
cross-assimilation
crossover valve
crown rent roll
decoupled zero
discharge of storm sewage
drilling people
earcaps
engine lifting bracket
faint heartedness
film boiling range
Frand partial dislocation
Gillmore needle
Gonorhynchus
granitational equilibrium
Grecian slipper
Greffen
hackings
harmonic range
herb simons
home machine
hydrocenids
hypodiastole
incipient error
infectious particle
jiu zhang suan shu(nine chapters on mathematical method)
Karlowitz
kat-
L(alpha)-argentite
labiodentally
load dispatching centre
mansarts
Mary L.
mattoirs
mdrc
meter in system
mortgage finance
neurite
oracle
organic accelerator
part-number
permit for transportation of the customs
petroselinolic acid
Peucedanum violaceum
phase slowness
pillow block bearing cup
preapp
printing computer
proper efficient solution
pyroacids
replevy
rice soil
round ligament rupture
scapulocoracoidea
Scheffer stroke
sectioning method
set much store by
skin pass mill
Somatmpin
South-South Conference
spetows
stablemate comparison
Strobilanthes compacta
Sulcus calcarinus
Swertia conaensis
swiveling unloading flap
system of axes
tactick
technifermion
Tetrachilomastix intestinalis
the interaction
the performance
to table a proposal
underground layer
university computing company
velo
ventilation pipe on roof
ventral cell
walking through