射束形成光学;聚束光学系统

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(172) / 评论(0) 分类 疯狂英语2003年

已经将近四年没有发片的Red Hot Chili Peppers在著名制作人理克 鲁宾(Rick Rubin)的协助之下,终于为歌迷们交出了这张重量级的双张专辑Stadium Arcadium。本张专辑一经发行,便在多个国家的音乐排行榜

发表于:2018-11-29 / 阅读(111) / 评论(0) 分类 中英翻唱歌曲

Forming a Union Norma: What is this? Jimmy: Its a flyer for a meeting Ive called to talk about forming a labor union here. Norma: Here? Do you think the management will let us? Jimmy: They cant stop us. Were working longer and longer hours and we nee

发表于:2018-12-03 / 阅读(101) / 评论(0) 分类 2013年ESL之商务英语

Imagine you are meeting a group of English learners to practice your speaking skills. The group leader puts everyone into small practice groups. The people in your group begin to ask each other questions. Here are some questions you might hear or ask

发表于:2018-12-16 / 阅读(37) / 评论(0) 分类 2018年VOA慢速英语(十一)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(78) / 评论(0) 分类 走进剑桥大学

At this time people very much believed that God had created a template for the heavens and he'd used pretty much the same template to create the society as well, and so with this as above so below belief, any change in the heavens immediately had hug

发表于:2018-12-27 / 阅读(85) / 评论(0) 分类 探索与发现2015年

beam, [bi:m] n 大梁(建筑中用作支撑的木材、金属或石头);光柱;臀围;平衡木 【船】横梁; 船幅; 船舷 (秤)杆; (犁)柄; (锄)把; 卷轴; 横杆; 杠杆 (鹿角的)主干 (灯光、日光、月光等的)束, 道,

发表于:2018-12-30 / 阅读(89) / 评论(0) 分类 不择手段背单词

Water Blankets Forming Planets A study in the journal Science finds much more molecular water in regions where planets are forming around young stars. The mechanism to keep the water from being destroyed by UV radiation appears to involve some of the

发表于:2019-01-02 / 阅读(139) / 评论(0) 分类 60秒科学

Life was not easy when Emma Seguy first arrived in Mesa, Arizona. The 20-year-old was born in Paris, France. But when she was 16, she decided she wanted to be more independent and to try something new. So, Seguy asked her parents if she could complet

发表于:2019-01-03 / 阅读(87) / 评论(0) 分类 2018年VOA慢速英语(六)月

English can be a complex language to master. It has a lot of rules and breaks many of them. No matter your level of English, forming questions can be one of the more vexing parts of mastering the language. The good news is that we are here today to m

发表于:2019-01-03 / 阅读(63) / 评论(0) 分类 2018年VOA慢速英语(九)月

Bob Beamon established himself as the favourite in the 1968 long jump by winning 22 of 23 meets in the pre-Olympic season. He almost met with disaster in the qualifying round. After fouling his first two attempts, he had only one try left. His teamma

发表于:2019-01-08 / 阅读(147) / 评论(0) 分类 英美文化

Locust Swarms Forming in West Africa Four countries in West Africa have been put on alert for the likely arrival of swarms of Desert Locusts. If uncontrolled, a small swarm can eat the same amount of food in one day as 35-thousand people. Locust swar

发表于:2019-01-14 / 阅读(87) / 评论(0) 分类 VOA标准英语2012年(十月)

Right on the beam To fly by the seat of his pants 美国英语当中有许多成语和俗语都和过去的历史有关系。例如,美国开拓西部的过程给美国语言增添了不少色彩。可

发表于:2019-01-14 / 阅读(153) / 评论(0) 分类 美国习惯用语

China is pursuing an ambitious program of reform to improve the public health system. The government has been attempting medical reform for a decade. Now we continue our special series to look at those efforts and achievements. The idea behind multi-

发表于:2019-01-17 / 阅读(76) / 评论(0) 分类 cctv9英语新闻2016年

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(208) / 评论(0) 分类 自然百科2011年

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(88) / 评论(0) 分类 实用英语

medicine,drug medicine指起治疗作用的药,通常只指口服的药,一般不用复数形式。 drug在广义上可以指任何药剂,但更多用来指狭义的麻醉剂、毒品。 Take some medicine before sleeping. 睡前吃点药。 Th

发表于:2019-02-13 / 阅读(78) / 评论(0) 分类 英文语法词汇

Reading Dictionaries for Fun 以读字典为乐 Mr Shea owns over 1,000 dictionaries and he likes to read them for fun. He recently spent a year reading all 20 volumes of the Oxford English Dictionary. The dictionary contains more than 20,000 pages a

发表于:2019-02-13 / 阅读(44) / 评论(0) 分类 英语听力精选进阶版

Some legal advice 法律建议 What can I do for you? 需要帮忙吗? Well, I 'd like some legal advice. 嗯,我需要一些法律上的建议。 Jane and I are thinking of incorporating. 我和简打算合并组成公司。 So,I want to find ou

发表于:2019-02-15 / 阅读(57) / 评论(0) 分类 外贸英语话题王

Netanyahu suffered a heavy blow as his rightwing electoral alliance, Likud-Beiteinu, received only 31 of 120 seats in the next parliament. Being the leader of the biggest party, Netanyahu remains on course to continue as prime minister. However, form

发表于:2019-02-21 / 阅读(61) / 评论(0) 分类 英闻天下
学英语单词
0953
Abomasectomy
acoustic absorbant
appeaseth
Bagnes
battery holder
black sonw
bronas
brown acetate of lime
captain's copy
cardiac gland
characteristic of spring
Chiumbi
climatic diathesis
coaxial adapter
consignor's No.
Cord-measure
Cormacks
coromandel laquer
counterpart contribution
court favor
cozad
criminal act
cuspate sandkey
defencemen
deformative
devil-cat
dial cable
diurocoris nakabayashii
double birdie
drag
Duffstown
dukes of marlborough
east china
end-of-conversion pulse
ethnopolitics
exertional
fish-market
fluorine-containing resin
genericity
gwendolyn
hand-operated quick-closing stop valve
high-explosive ammunition (hedp)
hyposensitised
initial infection
internal emitter point
jawblocking
kid sisters
Kohung
kompong
League of Iroquois
linear transistor
loxoconcha gouae
macrocontrolled market economy
make a buck
millimeter wave band
miscreant
multi-purpose vice
n. dorsalis clitoridis
naval installations
nonalbum
null allocation
Ochtrup
paloverde
parabolic metric geometry
philanthropinism
Phoebe yunnanensis
plate constants
pleuracanth
poltrooneries
prereligious
quotient verdict
ready made units
render right
resistance wire strain gage
rural residents
S/A
safe handling of cargo
safety-pin
scram magnet
SD (standard deviation)
sea colour measurement
seadogs
semen conservation
shacking
shield-driven tunnel
silybinin
Sindebele
small-signal modulation
solaria
special value
square-on reflector
STYCAR
super-long stroke crosshead diesel engine
Toisvesi
tuckmen
unpowered rudder
vector image
vedc
venter inferior musculi omohyoidei
vertical guide idlers
Wood-price