[化] 定域分子轨道

Questions for NASA after Rocket Explosion 火箭爆炸后美国国家航空航天局面临的问题 Unmanned Antares rocket is seen exploding seconds after lift off from a commercial launch pad in this still image from NASA video at Wallops Island, V

发表于:2018-12-08 / 阅读(65) / 评论(0) 分类 2014年VOA慢速英语(十)月

Virgin Spaceship Crash Raises Questions 维珍宇宙飞船失事引发诸多问题 WASHINGTON Plans to fly tourists to the edge of space could be delayed after Friday's crash of Virgin Galactic's SpaceShipTwo during a manned test flight. It is the se

发表于:2018-12-16 / 阅读(43) / 评论(0) 分类 VOA标准英语2014年(十一月)

美国火箭爆炸,私营航天产业的挫折 Wednesday's successful launch of a Russian space vehicle taking supplies to the International Space Station was in sharp contrast to the explosion of a private U.S. cargo space craft shortly after it's

发表于:2018-12-19 / 阅读(62) / 评论(0) 分类 VOA双语新闻 2014年10月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Just when you thought youd heard everything, scientists have found that the reason you can hear everythingincluding things that are very quietis because

发表于:2018-12-24 / 阅读(72) / 评论(0) 分类 Scientific American(四)月

Galactic Rotation 银河系自转 Astronomers calculate there is ten times more matter in our Milky Way galaxy than we can actually see. Discover how the orbital motions of stars in the galaxy reveal dark matter -- on today's Earth and Sky. JB: I'm Joel

发表于:2019-01-02 / 阅读(184) / 评论(0) 分类 (科普英语)Earth and Sky

The 2009 Nobel Prize in Chemistry goes to Venkatraman Ramakrishnan of the MRC Laboratory of Molecular Biology in England, Yale Universitys Thomas Steitz, and Ada Yonath of the Weizmann Institute of Science in Israel for their studies of the ribosome.

发表于:2019-01-08 / 阅读(100) / 评论(0) 分类 Scientific American(十)月

美国私企飞船与空间站对接 WASHINGTON, Jan. 12 (Xinhua) -- A commercial spacecraft, operated by U.S. space company Orbital Sciences Corp., docked with the International Space Station (ISS) on Sunday morning on its first official cargo resup

发表于:2019-01-09 / 阅读(91) / 评论(0) 分类 英语新闻

modlue 4 Food and drinks [00:20.94]模块四 食品和饮料 [00:23.28]unit 1 The food we eat [00:25.40]单元一 我们吃的食品 [00:27.53]Read [00:28.71]读 [00:29.88]'What would you like for dinner tonight?'Mrs Li asks Kitty and Ben. [00:34.42]

发表于:2019-01-09 / 阅读(238) / 评论(0) 分类 沪教版牛津小学英语六年级

SCIENCE IN THE NEWS - Space Junk Threatens Earths Orbital Environment JIM TEDDER: This is SCIENCE IN THE NEWS, in VOA Special English. Im Jim Tedder. KATHERINE COLE: And Im Katherine Cole. Today, we tell about an ever increasing number of objects in

发表于:2019-01-12 / 阅读(111) / 评论(0) 分类 2011年VOA慢速英语(九)月

Global Warming Could Delay Next Ice Age The next ice age could be delayed by tens of thousands of years due to excessive amounts of heat-trapping carbon dioxide in the atmosphere, which disrupts Earths natural cycle of warming and cooling, according

发表于:2019-01-13 / 阅读(84) / 评论(0) 分类 VOA标准英语2012年(一月)

With Failed Launch, US Private Space Industry Suffers Setback 火箭发射失败 美国私人航天受挫 Wednesday's successful launch of a Russian space vehicle taking supplies to the International Space Station was in sharp contrast to the explosi

发表于:2019-01-14 / 阅读(63) / 评论(0) 分类 VOA标准英语2014年(十月)

This years Nobel Prize in Chemistry is about the worlds smallest machines. G?ran Hansson, secretary general of the Royal Swedish Academy of Sciences, earlier this morning. The Royal Swedish Academy of Sciences has decided to award the 2016 Nobel Priz

发表于:2019-01-17 / 阅读(119) / 评论(0) 分类 2016年Scientific American(十)月

The amount of debris orbiting the Earth has reached a tipping point for collisions, which would in turn generate more of the debris that threatens astronauts and satellites, according to a US study released on Thursday。 NASA needs a new strategic p

发表于:2019-01-30 / 阅读(74) / 评论(0) 分类 实用英语

By David McAlary Washington 12 July 2006 Astronaut Mike Fossum (on arm)installs the International Space Station's railcar-like mobile transporter U.S. space shuttle astronauts are on their third spacewalk since Saturday, this time to practice method

发表于:2019-02-03 / 阅读(179) / 评论(0) 分类 2006年VOA标准英语(七月)

Milan draw 2-2 with Palermo ROME, Oct. 30 (Xinhua) -- AC Milan fought back from 2-0 down to salvage a 2-2 draw at Palermo in a Serie A match on Tuesday. Fabrizio Miccoli converted a penalty to cap a strong first half for the home team before Franco B

发表于:2019-02-05 / 阅读(101) / 评论(0) 分类 英语新闻

Pollster Dalia Mogahed 分享了一些关于埃及人对于阿拉伯之春的态度的令人意外的数据主要集中于女性在导致变革中起到的角色。

发表于:2019-02-05 / 阅读(171) / 评论(0) 分类 TED公开课:告女性说

音乐咖啡厅:Seal - Les Mots 相关介绍:Seal 全名Seal Henry Samuel,于1963年2月19日出生在英国伦敦,他是一名混血儿,父母分别是自尼日利亚人和巴西人。自上世纪90年代以来,Seal一直都是英国最受欢

发表于:2019-02-05 / 阅读(200) / 评论(0) 分类 音乐咖啡厅

今天给大家带来的歌曲I remember来自mocca。 Mocca是印尼独立流行乐团的翘楚,乐队已经成立7年,由一女三男共四位成员组成,分别吉他riko,贝斯toma,鼓手indra以及核心人物,也是乐团唯一的女士,她是主唱兼笛子演奏,名叫Arina Ephipania Simangunsong。 Mocca是一支

发表于:2019-02-06 / 阅读(181) / 评论(0) 分类 音乐咖啡厅

BERLIN, May 25 (Xinhua) -- Borussia Monchengladbach carved out a 2-1 win on aggregate against second-division team Bochum to stay in the first division thanks to a late equalizer by striker Marco Reus on Wednesday. The Fohlen smoothed the way for fir

发表于:2019-02-18 / 阅读(84) / 评论(0) 分类 英语新闻
学英语单词
a bleeder of a
activist justice
agricultural land
Alberich
and-one
benign tumor
cajeputol
cam shaft timing indicator
carrot pudding
charangas
chicken ilex wood carving
chrysosoma leucopogon
chute blockage
clocked gate
colpoceliocentesis
concealed-carry
convolution interleaving
cornmeals
cottonbush cr.
cytophosphane
Danxi's experiential therapy
Demidone
denominate number
Dilzem
double result
duelers
fibular veins
fitness model
Formicoidea
Fuluälven
gate leg, gateleg
Gentianopsis paludosa
Gibbs-Helmholtz equation
go hit a bad patch
goalkicker
Gordoncillo
gracilariids
inch symbol
infields
international telecommunications union -telecommunication
keyboard data recorder
Khirbet Kerak
Kisambo
linear prestress
llps
logical record transmission
meels on wheels
N-acetylcarbazole
NAICO
nearest neighbour decoding
nemalion vermiculare sur.
nib-forming die
nominal load-bearing capacity
noneligible commercial paper
not feel
null lint
oligoneustic
olympic-level
P orbital
perseverings
phosphatidyls
phyllidia varicosa
planned intervention
plutonic series
progress-monitoring
pyrosemifusinite
radecol
ragweeds
reckonable
regenerative power substation
release hormone
residual moveout
resonance pulsator
rhinocerite
Russo reaction
Sacecorbo
sappota
sativum
saurenchelys fierasfer
screencap
self compensation
Sikar
Sinobambusa laeta
stego
subchamber
subcranial
swigert
symplasm theory
synchronous motors
Tange
tender yarn
tooth taper
toughness index
turnout design
two place
upbraided
vector potential field
ventilator register
wijkia tanytricha
youwards
zimbe