激光牙釉质溶合器

If you look up 'tea' in the first cookery book that comes to hand you will probably find that it is unmentioned; or at most you will find a few lines of sketchy instructions which give no ruling on several of the most important points. This is curiou

发表于:2018-11-29 / 阅读(209) / 评论(0) 分类 阅读空间

以字母O开头英语绕口令: 1.On a lazy laser raiser lies a laser ray eraser. 1.在一个反应迟钝的激光器上放了一个激光消除器。 2.Old oily Ollie oils old oily autos. 2.油腔滑调的奥利给老油汽车抹油。 3.One-One

发表于:2018-12-03 / 阅读(264) / 评论(0) 分类 英语绕口令大全

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(136) / 评论(0) 分类 VOA常速英语2008年(四月)

1. A judge has found 3 New York Police detectives not guilty in the shooting death of an unarmed man. The officers shot Sean Bell 50 times just hours before his wedding. Rev. Al Sharpton has called for a federal investigation. 2. An eight-mile stretc

发表于:2018-12-15 / 阅读(174) / 评论(0) 分类 美联社新闻一分钟2008年(四)月

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(122) / 评论(0) 分类 2013年VOA慢速英语(二)月

New Laser Device Helps Parkinson's Patients Walk 新激光设备帮助帕金森患者重获行走能力 Parkinsons disease slowly destroys the brains ability to control the muscles, depriving the patients of their mobility. Researchers at the Mayo Cl

发表于:2018-12-16 / 阅读(104) / 评论(0) 分类 VOA标准英语2014年(二月)

[00:00.00] MODULE THREE [00:13.84]Research [00:15.78]Unit one [00:19.96]I'm looking for information. [00:23.04]1.Look,listen and learn [00:33.99]A:Come here, Lingling. [00:36.81]Mum has bought a new computer for us. [00:40.15]This is the keyboard. [0

发表于:2018-12-29 / 阅读(142) / 评论(0) 分类 新标准小学英语第五册(三年级起点)

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(132) / 评论(0) 分类 2017年VOA慢速英语(七)月

Some dinosaurs were really huge, and now we may have a better way to estimate just how heavy these giants were. Researchers have developed a method to weigh dinosaurs based on laser scans of their skeletons. The study is in the journal Biology Letter

发表于:2019-01-08 / 阅读(203) / 评论(0) 分类 Scientific American(六)月

This is All Things Considered. I'm Michelle Norris. Phone calls from Sweden woke up two American scientists this morning, John Hall and Roy Glauber. They will share the Nobel Prize for Physics with a German Researcher Theodor Haensch. All three worke

发表于:2019-01-08 / 阅读(204) / 评论(0) 分类 2005年NPR美国国家公共电台

Human Teeth 人的牙齿 Teeth are the hardest thing in the human body. 牙齿是人体中最坚固的东西。 They are not made of bone. 它们不是由骨骼构成的。 They are made of enamel, gum and so on. 而是由牙釉质,牙龈等构成的

发表于:2019-01-10 / 阅读(132) / 评论(0) 分类 与美国小学生一起学英文第2册

Laurent: So Im confused . Whos David again? Bethany: David is my roommates friends brother. Havent you been listening? Laurent: I have, but how am I supposed to keep all of these people straight ? Your stories are always so convoluted , with too many

发表于:2019-01-11 / 阅读(101) / 评论(0) 分类 地道美语播客

Good evening, everybody! said the teacher, Donna. Where is everybody? That was sort of a daily joke by Donna. Usually the class started with only two or three students present, and then filled up as the minutes went by. It was summertime. Summer scho

发表于:2019-01-11 / 阅读(91) / 评论(0) 分类 365个英语简短小故事

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(182) / 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(152) / 评论(0) 分类 2012年VOA慢速英语(一)月

[0:0]lable laboratory lad lag标签,标记 实验室 男孩,小伙子 落后,滞后 [1:9.3533]lamb landlord landscape lane羔羊,小羊 地主,房东,店主 风景,景色 小路,小巷 [1:52.8522]largely laser latter laughter大部分,主要地 激光器 后者的,末了的 笑,笑声 [2:36.6

发表于:2019-01-16 / 阅读(234) / 评论(0) 分类 闭着眼睛飘单词 四级词汇

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(155) / 评论(0) 分类 VOA常速英语2007年(十一月)

Countless arguments have been waged over the superiority of one beverage over the other. But what does the scientific evidence say? 关于这两种饮料孰优孰劣的问题已经引发了无数争论。但是科学证据是怎样的呢? George Or

发表于:2019-02-13 / 阅读(132) / 评论(0) 分类 阅读空间

LONDON, June 16 (Xinhua) -- Drillings and fillings at the dentist's are always dreadful and make tooth decay treatment very unpleasant. But British scientists have developed a new approach of fixing tooth decay, which could get rid of all the drillin

发表于:2019-02-18 / 阅读(143) / 评论(0) 分类 英语新闻

Big Red The first time we set eyes on Big Red, father, mother and I were trudging through the freshly fallen snow on our way to Hubble's Hardware store on Main Street in Huntsville, Ontario. We planned to enter our name in the annual Christmas drawin

发表于:2019-02-18 / 阅读(118) / 评论(0) 分类 阅读空间
学英语单词
abjuratory
admicropylar
advice-givings
Ardstraw
Arnold-Chiari
artificial seawater
bannens
bicolour lespedeza
bubbling tower
bulbospongiosus
charadriis
cicatricula
cleruch
coicoyan de las flores
constant-diameter cam
conventional signs and abbreviations
crowning worm hob
dew-beater
direct reading phase analyzer
drilling diameter
early-warning satellite
electro countermeasure
electromagnetics theory of light
evaluation of mechanical endurance
expand into
extract content
Ferula foetida Regel
floating chase
four-wire type circuit
front-drive rake
gene mutation rate
general chart of coast
glazing of powder
Golden Delicious apple
Gorna Oryakhovitsa
ground deformation
hematocathartic
Henle's warts
high-tension selenium rectifier
hydnocarpuss
hydrazinium formate
hydroxypyruvic acid
immediate goods
indirect-acting carcinogen
interbranch account
international banking facility
ion dose rate
Jahām, 'Irq
jarvenpaa
lubricator driving shaft
macrotape
magnetic particle analyzer
magnetic tape leader
medium altitude communications satellite system
minimands
myelinolytic
narrativize
nearly men
nourishing kidney
nucleophilic addition
numerical dissipation
optical radiation protection
pigs in a blanket
positional parameters
presto
proteroglyphs
rope carrier
Salavan
sea-of-japan
secondary period
semi-vocoder
seminal gland
servo positional rate
set-apart
sew sb up
shearing stress
shift right
shortest-path routing
simple sound source
Sindbis
skittless
small form factor pluggable
soil borer
sportsfests
stamp and go
thin film hybrid integrated circuit
three-finger
thyrsuss
tin horn
toiled
tower structure
Tunisianization
twenty-one (21) cm radiation
uk high commission
uropittin
VVR type reactor
Värsås
West Indian snowberry
wide-range search system
winding someone up
x ray dispersion
xerographi