膜层的激光破坏阈值

D src=sound/d42.rm width=200 height=50 type=audio/x-pn-realaudio-plugin controls=

发表于:2018-11-27 / 阅读(237) / 评论(0) 分类 4+1听力口语MP3

Questions are an important part of almost every conversation. So being able to ask good questions is critical to communication. How can we make our questioning more effective and efficient? In this two-part Business English Podcast series well be loo

发表于:2018-12-05 / 阅读(163) / 评论(0) 分类 商务英语沟通技巧

By Carol Pearson Washington 30 April 2008 Ten years ago, the U.S. Food and Drug Administration approved LASIK, eye surgery with a laser that enables people to see without glasses. But about five percent of LASIK procedures fail, and those patients ca

发表于:2018-12-08 / 阅读(121) / 评论(0) 分类 VOA常速英语2008年(四月)

A---- accessory equipment 附属设备 adhesion test instrument for the wood coating 木材涂层附着力测定仪 adz(e) 手斧,刮刀 air brake 空气制动器,气闸 air compressor 空气压缩机 air conditioning unit 风向调节器 air nailer 风动钉钉机 air operated automatic

发表于:2018-12-12 / 阅读(114) / 评论(0) 分类 英文语法词汇

新东方4+1 听力 口语MP3-语音语调 Unit42 Part One 听辨练习 A. Listen ,circle the corresponding number if you hear ?????or ???? in the word. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. B. Write down the words you hear on the tape, then fill in the bl

发表于:2018-12-15 / 阅读(219) / 评论(0) 分类 新东方4+1听力口语

EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can

发表于:2018-12-16 / 阅读(101) / 评论(0) 分类 2013年VOA慢速英语(二)月

This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because

发表于:2018-12-24 / 阅读(136) / 评论(0) 分类 Scientific American(三)月

Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s

发表于:2019-01-02 / 阅读(121) / 评论(0) 分类 60秒科学

The United States Navy has demonstrated a new laser weapon operating in the Persian Gulf. The Laser Weapons System, or LaWS, is deployed on the USS Ponce transport ship. A live test firing of the weapon was recently carried out for Cable News Network

发表于:2019-01-02 / 阅读(117) / 评论(0) 分类 2017年VOA慢速英语(七)月

A cellphone rests in its watery-grave,a distressing sight for cellphone users everywhere. But this one, isn't dead. Hello, this Alexan,thanks for calling ,welcome, how may I help you?Liquipel is a start-up company based in Santa Ana, California. It's

发表于:2019-01-07 / 阅读(104) / 评论(0) 分类 万花筒2012年

The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci

发表于:2019-01-12 / 阅读(162) / 评论(0) 分类 2013年VOA慢速英语(五)月

EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: Welcome to EXPLORATIONS in VOA Special English.Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one

发表于:2019-01-12 / 阅读(131) / 评论(0) 分类 2012年VOA慢速英语(一)月

Questions are an important part of almost every conversation. So being able to ask good questions is critical to communication. How can we make our questioning more effective and efficient? In this two-part Business English Podcast series well be loo

发表于:2019-01-18 / 阅读(120) / 评论(0) 分类 原汁原味商务英语播客

By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti

发表于:2019-01-31 / 阅读(139) / 评论(0) 分类 VOA常速英语2007年(十一月)

Everyone who has eaten instant noodles before knows how it looks like. It is very easy to cook it instantly by putting the noodles into the boiling water and add in those MSG packets, together with your other ingredients like eggs or vegetables. Howe

发表于:2019-02-05 / 阅读(129) / 评论(0) 分类 阅读空间

J SHAPED POCKET J形袋 24L BUTTON 24号钮 6 FEED PIQUE 6模珠地 ACCESSORY 辅料 BACK ACROSS 后背宽 ACROSS MEASURE 横量 ACRYLIC 腈纶 ADHESIVE / FUSIBLE INTERLINING 粘衬 ANTIQUE BRASS COATING 镀青古铜 ANTISTATIC FINISH 防静电处理

发表于:2019-02-08 / 阅读(138) / 评论(0) 分类 实用英语

今天我们要学的词是 threshold. Threshold 是门槛,临界值的意思。I have a low threshold for alcohol . 我酒量小。有研究显示,Women have higher threshold for pain than Men. 女性比男性抗疼痛的能力更强。YouTube a

发表于:2019-02-08 / 阅读(104) / 评论(0) 分类 英语单词荟萃

Google has patented a sticky coating for driverless cars that could reduce damage done to pedestrians in the event of a collision. People struck by the vehicle would become glued to its bonnet, rather than being thrown off and further injured. 谷歌已

发表于:2019-02-08 / 阅读(115) / 评论(0) 分类 英语新闻

靛蓝青年布:Indigo chambray 人棉布植绒:Rayon cloth flocking PVC植绒:PVC flocking 针织布植绒:Knitting cloth flocking 珠粒绒:Claimond veins 倒毛:Down pile making 平绒:velveteen (velvet-plain) 仿麂皮:Micro suede

发表于:2019-02-18 / 阅读(145) / 评论(0) 分类 实用英语

你的笑点在哪里?你的笑点怎么这么低?类似这样的话题在网络上随处可见。是的,这是近两年网络上又新生的一种说法,笑点不同怎么做朋友?那么,你知道英文里是怎么表达笑点的吗? HHP is a

发表于:2019-02-25 / 阅读(121) / 评论(0) 分类 英语口语
学英语单词
abhinayas
acoustic recognition input
Adenocaulon himalaicum
Al-Si alloy
alternative futures
altitude air valve
amerigo vespuccis
aquametry apparatus
auxiliary capacitor
baby dick
be like sisters
Benedict's solution/Benedict's reagent
blahblahs
brainers
builder's cleavage
business departments
carbonaceous fuel
CDP-diacylglycerol
ceepryn
centrifugal-force tachometer
chicken pot pie
cinchonometry
closed clause
conioscinella intrita
convection mass transfer
cryature
dialytic
dithorium
Dougga
drafting standard
drummondia clavellata hook.
duples
E,e
electric steel sheets and strips
engine starting system
equatorial cleavage
equipotential region
external superheater
Fijian
firebuttons
flexible service
flip a switch
Formigny
full screen
Ganglia spinalia
gangs up on
genus hygrotramas
grandparent
hansels
Hutchinson-Gilford disease
in for perpetuity
in-plant test
Isaac Singer
james abbott mcneill whistlers
jigglings
kliegs
lochlan
low-frequency power amplifier
lower confidence limit
maser preamplifier
May wines
Mealy machines
Monactinellida
myotrophy
obligation fund
paradoxicality
pledge card
poor-me-one
portable hoisting jacks
protection addressing
pseudoplastics
put out of service
radiality
railway ticket
reserved page
risk free rate
self-indulgent
shallow footing
skew roller table
sloping control panel
spunbonded
stain etch
subgenital plate
swimmies
synagogue
TAREX
thermodynamic branch
thin-sheet metal
thirty-something
trendscriber
trichromatic colorimeter
Truphylline
two-phase
unclimactic
viallis
Waldstein, Albrecht von
Windows Task Manager
wire sonde
workhead transformator
yavuz
yielding arch