[光] 能动光学
主动光学

They Did It With Mirrors! You can’t stand in front of the paintings of the old masters and not wonder, how did 1) Frans Hals make that lace seem so real? How did 2) Van Dyck make his armor so gleami

发表于:2018-11-28 / 阅读(455) / 评论(0) 分类 疯狂英语2003年

[00:35.00]a/an [00:37.07]art.1.一(个) 2.任何一个 3.每,每一 [00:39.13]abandon [00:40.59]vt.1.抛弃 [00:42.06]abide [00:43.49]2.放弃. [00:44.93]ability [00:46.37]v.(by)坚持,遵守 [00:47.80]able [00:49.18]n.1.能力,智能 2.才能,才干

发表于:2018-11-30 / 阅读(330) / 评论(0) 分类 考研英语词汇2005

Today's topic is active voice versus passive voice. Here's Brian from Iowa: It drives me crazy when people write in passive voice. How can I teach people how to tell the difference between passive and active voice and stay away from passive voice? Th

发表于:2018-12-07 / 阅读(345) / 评论(0) 分类 英语语法 Grammar Girl

Unit 2 She looks active. [00:02.39]第二单元 她看起来活跃。 [00:04.78]Lesson 7 Just speak [00:07.01]第七课 刚才的谈话 [00:09.25]Who's this? [00:10.83]这个是谁? [00:12.41]My new friend in the art club. [00:14.29]我在艺术俱乐

发表于:2018-12-12 / 阅读(324) / 评论(0) 分类 人教版小学英语五年级

by Mignon Fogarty Today's topic is active voice versus passive voice. The podcast edition of this article was sponsored by GoToMeeting. With this meeting service, you can hold your meetings over the Internet and give presentations, product demos and

发表于:2018-12-15 / 阅读(313) / 评论(0) 分类 英语语法 Grammar Girl

Muslim Brotherhood Ready for More Active Role in Jordan From VOA Learning English, this is IN THE NEWS in Special English. The Muslim Brotherhood is one of the largest Islamic groups in the Arab world. For years, the Brotherhood has been banned in a

发表于:2018-12-16 / 阅读(316) / 评论(0) 分类 2013年VOA慢速英语(六)月

The top American military officer, Admiral Mike Mullen, has taken a particularly active role in changing the U.S. approach to Afghanistan, contributing to the new strategy, choosing the new commander for U.S. and NATO forces, and deciding to replace

发表于:2018-12-16 / 阅读(288) / 评论(0) 分类 VOA标准英语2009年(六月)

Newtons Apple Tree 牛顿的苹果树 Newton was an English physicist and mathmatician,and was the greatest scientist in his era. 牛顿是一位英国物理学家和数学家,也是他那个时代最卓越的科学家之一。 Isaac Newton was bor

发表于:2018-12-18 / 阅读(312) / 评论(0) 分类 走进剑桥大学

Iranian President Mahmoud Ahmadinejad's visit to Istanbul last week is seen as part of Ankara's increasingly active role in the Middle East, after decades of passivity in the region. At the same time, some analysts say, Turkey's ties to the West are

发表于:2019-01-13 / 阅读(384) / 评论(0) 分类 VOA标准英语2008年(八月)

World Health Day Focuses On 'Active Aging' Shelby Harris just celebrated his 111th birthday. His secret? I try to live the right kind of life, he said. I try to live the truth, I love everybody and I want everybody to love me. Some experts say a posi

发表于:2019-01-13 / 阅读(312) / 评论(0) 分类 VOA标准英语2012年(四月)

Active MRI Shows How Joints Work 活动核磁共振成像显示身体关节如何运作 Since its introduction in the 1980s, magnetic resonance imaging machines, commonly known as MRI scanners, have become a highly valuable tool in diagnostic medicin

发表于:2019-01-14 / 阅读(297) / 评论(0) 分类 VOA标准英语2014年(三月)

Its a stunning location, but its also mysterious. These stars are not just close together. They are on the move at enormous speeds. Going to the heart of a galaxy might not be the similar to going to an amusement park. The rides are some similar to h

发表于:2019-01-22 / 阅读(422) / 评论(0) 分类 自然百科2011年

LONDON, July 4 (Xinhua) -- Anders Fogh Rasmussen, Secretary General of the North Atlantic Treaty Organization (NATO) expressed his hope on Wednesday that NATO would seek a more active dialogue with China. We must expand the range of nations with whom

发表于:2019-01-30 / 阅读(361) / 评论(0) 分类 英语新闻

SEOUL, Nov. 8 (Xinhua) -- Samsung Electronics, the world's largest flat screen TV vendor, said Tuesday that it has suspended its plan to develop active shutter three-dimensional (3D) TVs with RealD, the U.S.-based 3D technology supplier. Samsung has

发表于:2019-01-30 / 阅读(378) / 评论(0) 分类 英语新闻

今天我们要学的词是active duty。 Active duty, 现役的。星期一是美国阵亡将士纪念日。 My friend Jack is an active duty Army Captain who has deployed overseas three times, 我朋友杰克是现役陆军上尉,先后三次被派

发表于:2019-02-05 / 阅读(372) / 评论(0) 分类 英语每日一词

可以调焦的眼镜? They may look like an ordinary pair of spectacles, but these glasses are at the forefront of a revolution in eyewear. 它们看起来像普通的眼镜,但是是眼镜改革的最前沿。 Part of a new line of electronic eye

发表于:2019-02-07 / 阅读(341) / 评论(0) 分类 实用英语

今天我们要学的词是active duty。 Active duty, 现役的。星期一是美国阵亡将士纪念日。 My friend Jack is an active duty Army Captain who has deployed overseas three times, 我朋友杰克是现役陆军上尉,先后三次被派

发表于:2019-02-16 / 阅读(267) / 评论(0) 分类 英语单词荟萃
学英语单词
absorber coupling
Ad Dahnā'
allowable deviation
Aminoxafen
angelides
animal parasite
anticough
apostle pauls
ariolate
attonements
automatic phase control system
automobile body sheet
auxiliary shop
calx sulfurata
channel block
charging-turbine set
choconine
cinochamidine
clitties
computing bill
corneules
costley
critical altitudes
data storage and retrieval system
deponeth
disenshrouded
double-vane attenuator
drum ... out of
electrostatit printer
emperil
family polyodontidaes
fehn
Feminone
first baron tennysons
fleet replenishment tanker
fluid pressure scale
fractionator packed-type
fruit inception
getting physical
guickly
Hattert
Herdman Seamount
homing ability
how... is that?
humanitarian
hydraulic sprinkler
influenciary
interequitate
iron resinate
jetengine
Kuchichin
lienopathy
linomide
logie
lozes
manufacturing facility
mass transfer rig
medium frequency direction-finding station (mdf)
memory indexing
morono
musculus deflector pinn. caud. prof. ventr.
myositis of guinea pig
nanobristles
net atomic population
nighthawkers
nuclear-weapons-free
oenguss
offertories
ophthalmogyric
opinion of independent account ants
Overhauser
phase shifting keying
phi-phenomena
pichuco
pin-ended portal frame
plowing
product solution concentration
protect
raising crank
reefer jackets
relevancy tag
return someone's call
rimoes
sand pavement
Saxifraga yushuensis
sec.s
shiningly
specific gravity of wood
sphincter of oesophagi
ST_industry_words-used-to-describe-textiles
state notarial organ
stream of homogeneous events
superuniversal shunt
synthones
tensile strength change
Tommy-gunned
uneais
video message
wildlife-conservation
work stress
workshyness
write interval