单词:circumpulpal dentin
单词:circumpulpal dentin 相关文章
With the development of science, human life has changed tremendously. People living in the 18th or 19th centuries would never imagine the advanced household appliances we are now able to enjoy. Every aspect of our lives for instance, in the field of
Sorry,thereisnottexttemporarily,Pleasehelptingroomtolookforit! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! 汪培珽分级书单(MP3+绘本) TOP50初级英文绘本
[00:00.00]Module 8 IN A MUSEUM [00:07.39]UNIT 1 I'm really excited to be here. [00:12.59]1 Listen and read. Then say. [00:17.92]Thanks for bringing me to the Science Museum [00:20.03]today, Dad. [00:21.66]I'm really excited to be here. [00:24.25]Ther
June the 1st is Pen Pal Day. Im sure most of us have had a pen pal at one time in our lives. Many of us still have one. Today is the day to say thank you to your pen pals. It is also the day to thank your key pals too. Nowadays, most people communica
1. circumference /səˈkʌmfərəns/ -- distance around a circle or rounded body; perimeter The circumference of a circle equals times the diameter. 圆周长等于与直径的乘积。 2. circumlocution /ˌsɜ:kəmləʊˈkju:ʃən/ -- roundabout way
Stephen Foster, 1826-1864: America's First Popular Songwriter He wrote more than two hundred songs during the eighteen forties and eighteen fifties. VOICE ONE: I'm Shirley Griffith. VOICE TWO: And I'm Steve Ember with the VOA Special English program
Jason Lewis pedals his boat up the river Thames After 13 years and 46,000 miles (75,00km) a British adventurer has completed a round-the-world journey using human power alone. Jason Lewis, 40, crossed five continents, two oceans and a sea to become
Ouch! About a quarter of all school-age kids will break or otherwise damage a tooth. Adults have their share of cracked chompers too. But what if fixing a busted bicuspid was as easy as zapping it with a laser? Preliminary work with young rats has mo
By Sonja Pace London 06 March 2008 Britain plans to introduce a controversial identification card plan in the coming months, with foreign workers first in line to get the compulsory ID's. VOA's Sonja Pace has details from London. The British governme
By Lisa Bryant Paris 14 June 2006 French President Jacques Chirac and Israeli PM Ehud Olmert, left, share a few words on the steps of the Elysee Palace following their meeting in Paris Israeli and French leaders met in Paris Wednesday to discuss con
Russian Foreign Minister Sergei Lavrov says Russian troops have no timetable for withdrawing from Georgia under a cease-fire agreement both sides have signed. Lavrov told reporters in Moscow today the pullout is contingent on the security situation
STEVE EMBER: Welcome to THIS IS AMERICA in VOA Special English. Im Steve Ember. FAITH LAPIDUS: And Im Faith Lapidus. Every ten years the United States government counts the national population and asks people questions about how they live. Results fr
Education Report - A Living Science Exhibit Grows at a Museum This is the VOA Special English Education Report. Outdoors, in the open air, seems like a natural place to study natural science. It also makes sense in a place like Southern California wh
New Survey Finds 1/3 of World's Population Overweight Obesity is not just an American problem anymore. A recent international survey by the Worldwatch Institute, found that nearly two billion people around the world are overweight. Health statistics
to pull no punches straight from the horse's mouth 大多数人都认为诚实和坦率是一个很好的品质,尽管我们不见得每时每刻都能够做到,美国人也不例外。在美国的日
图片1 图片2 图片3 图片4 图片5 图片6 图片7 图片8 图片9 图片10
Getting Rid Of Cavities Don: Sorry, I'm late. I was brushing my teeth. Yal: Brushing your teeth! Right before A Moment of Science? Why? D: I'm trying to get rid of a cavity . Y: Get rid of a cavity ? Are you stuck with a cavity once you have it? D: I
Getting Rid Of Cavities 牙痛是继续忍受还是提前做好防护?爱护牙齿,每天的必修课。 M:Sorry,I'm late.I was brushing my teeth. W:Brushing your teeth?Right before 'A Moment Of Science'? Why? M:I'm trying to get rid of a cavity. W
DNA Helps Catch Poachers 科学家们利用一种革命性的基因技术成功确定了走私犯屠宰大象的非洲地区,这些大象沦为全世界非法象牙贸易的受害者。利用非洲大象的DNA图谱,他们已发现最近缉获的象
Enamel is the hard outer tooth layer. 牙釉质是牙齿坚硬的外层。 The cavity gets larger by entering the softer second tooth layer, the dentin. 蛀牙洞到了牙齿的较软的第二层, 也就是牙本质时,龋洞就会变得大的多。