[化] 氟化氢抽提

用Mp3背六级单词033

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

发表于:2018-12-01 / 阅读(86) / 评论(0)

用Mp3背六级单词

SSS 2010-12-29

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

发表于:2018-12-02 / 阅读(115) / 评论(0)

Scientific American(十二)月

Dental Health

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

发表于:2018-12-07 / 阅读(86) / 评论(0)

科技之光

Uses Hydrogen1 as Fuel2

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

发表于:2018-12-07 / 阅读(117) / 评论(0)

VOA2003（上）-科技导航

英语分类词汇：光驱

BCF(Boot Catalog File，启动目录文件) BIF(Boot Image File，启动映像文件) CDR(CD Recordable，可记录光盘) CD-ROM/XA(CD-ROM extended Architecture，唯读光盘增强形架构) CDRW(CD-Rewritable，可重复刻录光盘) CLV(Constant

发表于:2018-12-18 / 阅读(158) / 评论(0)

英文语法词汇

口腔临床英语对话第29期:正畸治疗(2)

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

发表于:2018-12-27 / 阅读(115) / 评论(0)

口腔临床英语对话

口腔临床英语对话第18期:手术后的处理

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

发表于:2018-12-27 / 阅读(113) / 评论(0)

口腔临床英语对话

【小龟乐游记】特种神枪手（8）

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

发表于:2018-12-28 / 阅读(63) / 评论(0)

小龟乐游记英语短文

【小龟乐游记】秘密潜入（4）

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

发表于:2018-12-28 / 阅读(60) / 评论(0)

小龟乐游记英语短文

（考研词汇）新版—37

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；

发表于:2019-01-03 / 阅读(270) / 评论(0)

考研英语

VOA标准英语2012--Shedding Light on Extraction Industries

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

发表于:2019-01-13 / 阅读(81) / 评论(0)

VOA标准英语2012年(九月)

VOA标准英语2010年-Coal Burning Linked to Fluoride Diseas

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

发表于:2019-01-14 / 阅读(95) / 评论(0)

VOA标准英语2010年(十)月

分类词汇：医学英语 5

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

发表于:2019-01-17 / 阅读(133) / 评论(0)

英文语法词汇

科学美国人60秒 SSS 海狸牙齿的奥秘

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

发表于:2019-01-20 / 阅读(84) / 评论(0)

2018年科学美国人1月

SCIENCE IN THE NEWS - Dental Health

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

发表于:2019-01-30 / 阅读(103) / 评论(0)

科技之光

学个词 Learn a Word-VOA英语教学 2280-fluoride

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

发表于:2019-02-02 / 阅读(89) / 评论(0)

英语单词荟萃

英语词汇分类：矿业、采矿

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

发表于:2019-02-06 / 阅读(107) / 评论(0)

英文语法词汇

Wrecked Ship Fuel Extraction to Take Weeks

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

发表于:2019-02-06 / 阅读(73) / 评论(0)

英语新闻

VOA常速英语2008年-Mining Resumes in Goa Despite Opposition From E

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

发表于:2019-02-19 / 阅读(151) / 评论(0)

VOA常速英语2008年（二月）

雅思分类词汇：环境资源相关(十二)

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

发表于:2019-02-25 / 阅读(112) / 评论(0)

英文语法词汇

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学英语单词

2-propenoxybenzene

adventitial sheath

aneurysmal

annual hours contract

antral polyp

argumentation

backquote

base net(triangulation)

bottom friction

campanumoea javanica bl.

caprylene