单词:hydrogen fluoride extraction
单词:hydrogen fluoride extraction 相关文章
clockwise authentic inspector astonishment patrol expire explicit prohibition alteration hard atlas scan consequence annually extraction overpass cock steak fabrication spontaneous verge prism motive glorify transform errand comparable pant allowance
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Beauty is only skin deep. And the beauty of shiny white teeth is even less deep. Because a new study shows that fluoride forms a thinner protective shiel
07 牙病的预防与治疗 DATE=2-27-01 TITLE=SCIENCE IN THE NEWS #2113 - (1)Dental Health BYLINE=Nancy Steinbach VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with Science in the
Broadcast: February 14, 2003 By George Grow This is the VOA Special English Environment Report. President Bush has offered a plan to speed development of technology that uses hydrogen as fuel. His goa
Is it necessary to have cavities in the baby teeth repaired? 乳牙蛀成了洞还有必要补上吗? If the baby teeth are going to fall out, I don't think that it matters if they become decayed. 如果乳牙是要脱落的,我想蛀了也没有关
Part eight 第八章 Post-operative Care 手术后的处理 How do you do, Mrs. Waters? The Doctor will see you now. 沃特丝太太,你好。医生现在给你看病。 Hello Mrs. Waters. How are you feeling? Is there any discomfort? 沃特丝太太
Hathcock We have an update on the situation,command. HQ We read you. Hathcock We have visual confirmation that the target _(1)_ is currently being transported via _(2)_ ship with _(3)_ registration of The 5 Star. HQ Roger that,we will have intel surv
文本: ANYA: Jones,you identified this prison as Josef's destination.A man answering Josef's _(1)_ arrived here yesterday. JONES: The back-up is here now.Who's leading them?What's their role? ANYA: Captain Harrison is in command - ex Green Beret.H
express vt.表示 n.快车,快递 expression n.词句;表达;表情 extend vt.延长;扩大;致 extension n.延长部分;伸展 extensive a.广阔的;广泛的 extensively ad. 广泛地;
Shedding Light on Extraction Industries Europe is a step closer toward curbing corruption in extraction industries in developing countries. A European Parliamentary committee has approved proposed legislation that would require European companies to
A cluster of villages in China's Guizhou province has been plagued by an outbreak of disease that damages teeth and bones. Now, a new study by Chinese and American researchers puts the blame on polluted coal burned in home fireplaces. In small quanti
5.常见手术名称 General Surgery 普外 appendectomy (appendicectomy) 阑尾切除术 cholecystectmy 胆囊切除术 cholecystostomy 胆囊造口术 drainage of the abscess 脓肿引流 enterostomy 肠造口术 exploratory laparotomy 开腹探查
Ah yes.The ol' fluoride rinse at the dentist. Not pleasant. But hey, good for your teeth, right? 没错,这是牙医洗牙用的含氟漱口水。确实够闹心的。但毕竟对你的牙齿有益不是吗? Well now materials scientists have been
SCIENCE IN THE NEWS - November 26, 2002: Dental Health By Nancy Steinbach VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with Science in the News, a VOA Special English program abo
今天我们要学的词是 fluoride. Fluoride 氟化物。The U.S. government is lowering the recommended amount of fluoride added to drinking water for the first time in more than 50 years. 美国政府50多年来首次降低饮用水建议添加的氟
bed, deposit, field 书馆 矿床 outcrop 露头 fault 断层 vein, sean, lode 矿脉 gold reef 金矿矿脉 pocket 矿穴 reservoir 储藏 water table 潜水面,地下水面 mine 矿 stratum, layer 矿
A Dutch company that specializes in salvage operations says it will take weeks to remove the fuel from a cruise ship that capsized off Italy's coast. The company, Smit, says it plans to conduct a survey of the ship on Tuesday before the extraction pr
By Steve Herman Goa, India 07 February 2008 Mining, along with tourism, forms the economic backbone of India's seaside state of Goa. Environmental concerns recently halted much of the iron ore extraction, but the way has been now cleared for resumpti
工业INDUSTRY 工业生产过程Industrialprocesses 制铝工业Aluminiumindustry 适用技术Appropriatetechnology 高炉Blastfurnaces 纤维素Cellulose 化学工业Chemicalindustry 清洁技术Clea