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(223) / 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(269) / 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(143) / 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(183) / 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(127) / 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(112) / 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(146) / 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(138) / 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(210) / 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(215) / 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(142) / 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(105) / 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(94) / 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(188) / 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(161) / 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(242) / 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(163) / 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(141) / 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(153) / 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(125) / 评论(0) 分类 阅读空间
学英语单词
acetaldehydase
air-jacketed condenser
alteners
amlon
anisomorphic DNA
argentometric
assembling clearance
autochthonous bacterium
axiomatised
bee's wax
bielefelds
birch families
birkedahl
blacksmith's anvil
bobblehead doll
bottle-glasses
bowtel(l)
BRL-14151
brutals
bulderston
cable cutter
carbite
cervical tumor
characteristic functions
Chemiartrol
choke something back
clauses and subclanuses
clonish
Cockerill
comes to life
composite shell
condensing works
cordarones
Coursac
cross and resident assembler
deem
delayed action,delayed-action
digital-computer code
dilutive security
dispute on
expulsive pains
fecal pump
floorshift
Foster, Mount
Fursday
Gashun
genus Blechnum
get here
gilibertia hainanensis merr. et chun
Haemobartonella
heliskiers
highschooler
hydrogen preferential oxidation
industrial tractor
kilowatt of eletctric energy
kitlope r.
lanciotti
laveer
local clearing
mamateek
menu sheet
meteorologic map
migration inhibition test
musk-wood
non-proficient
nonnumeral
order for future delivery
Ormosia emarginata
paraplegia inferior
partial signature
Peganum
periscope rising distance
propulsion machinery order
quenching transformator
radiosensitizing
rail switch
red cinchona
relay act trip
repaired plywood
Rottne
runaway collision
saskatchewans
scend
semi-evergreen
sentential variable
shift network
shipline
slew-rope
sluice flour slab
sprung-hub wheel
supplemental rate
their asses
thrust reverser cascade
tilled
tongue-kiss
two-breaker configuration
uncharged state
undercoverts
variolar virus
vitamin bc (folic acid)
wage allocation sheet
xanthates