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TheyThe use a fluorid of fluoride to protect teeth is common in many parts of the world.

氟化物保护牙齿被世界上很多国家所

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T calculated from the characteristic temperatures shows that the thermal stability of fluorophosphate glass is better than fluoride glass.

据显示氟磷酸盐玻璃热稳定性比氟化物好。

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The experiments suggest that the superfluorescence of fluoride glass fibr is a kind of low coherence and high performances light source with bright application prospect.

明利氟化物玻璃光纤有望获得性能优异有应前景低相干度集成化光源。

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6 Minute English 六分钟英语

You shouldn't believe everything you hear, Rob. Fluoride protects our teeth against decay.

你不应该听到什么都相信,罗伯。氟化物能够保护我不被腐蚀。

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CNN 10 学生英语 2019年4月合集

Fluoride and teeth, compression and engines, X-rays and bone health or telegraph and wiring.

氟化物缩和发动机,x 光和骨骼健康或电报和布线。

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时差N小时

Dentists can help by giving you a fluoride treatment, but you have to brush and floss regularly.

医生还可以为你做氟化物治疗(在蛀部位涂上高浓度氟化物,令初期蛀坏部分还原),但是,你必须定期洗,还要经常使用线清洁

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TED-Ed(视频版)

That strengthens teeth and encourages the growth of enamel crystals that build up a tooth's defenses against acid.

也添加了微量氟化物可以强化、促进珐琅质生长。

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科学60秒 听力 2013年5月合集

They found that three different strains of cavity-causing bugs cling less tightly to enamel that's been rinsed with fluoride.

发现引起蛀三种不同菌株很少粘附于有氟化物加固釉质表面。

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国土安全 第5季

Forget about the police. Get rid of the DF.

别管什么警察了 毁掉氟化物

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科学60秒 听力 2015年3月合集

And that's where the fluoride hangs out, helping to stave off an acid attack of the enamel—in other words, a cavity.

氟化物就在这里聚集,帮忙延缓阻挡釉质酸蚀—换句话说抑制蛀

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CNN 10 学生英语 2019年4月合集

The U. S. Food and Drug Administration is considering a lower limit on the amount of fluoride that's allowed in bottled water.

美国食品和药物管理局正在考虑降低瓶装水中氟化物允许含量。

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Engvid超级外教Ronnie-口语

They usually use a fluoride solution, and they scrape all the dirty stuff off your teeth.

常使用氟化物溶液,将所有脏东西刮掉。

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CNN 10 学生英语 2019年4月合集

The American Dental Association, which supports adding fluoride to water, says the FDA's proposal would still work to prevent tooth decay.

支持向水中添加氟化物美国科协会表示,FDA建议仍然可以防止蛀

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潘潘

As a try, he smeared some fluid fluoride on the leaves, so the flowers would gloss fluorescence in the darkness!

作为一种尝试,在花瓣上涂了些流质氟化物。花儿会在黑暗里发出荧光!

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Osmosis-消化

In addition, brushing and flossing are useful because they physically remove dental plaque and deliver fluoride to the teeth to help with remineralization.

此外,刷和使用线很有用,因为它可以过物理方法去除菌斑,在表面涂氟化物可以帮助再矿化。

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Asap SCIENCE 精选

Fluoride is very safe in small doses and can help fight cavities but ingesting around 24 tubes with 170 milliliters or 6 ounces each could be fatal.

小剂量氟化物是非常安全,可以帮助治疗蛀,但是摄入大约24支170毫升或6盎司氟化物可能是致命

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《卫报》(文章版)

" Prof, " he said. " We don't care about the fluoride. What we want to know is how the water has entered our schools."

" 教授," 说。" 我不关心氟化物问题。我想知道是,这些水是如何进入我学校。"

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CNN 10 学生英语 2019年4月合集

He noticed that too much fluoride caused stains on the teeth of children in part of Colorado but it also protected their teeth from decay.

注意到,在科罗拉多州部分地区,过量氟化物会导致儿童污渍,但它也能保护不受腐蚀。

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CNN 10 学生英语 2019年4月合集

But too much fluoride, especially for children who's adult teeth are still forming can lead to a problem called dental fluorosis when white patches form on teeth.

但是过多氟化物,尤其是对于儿童来说,成年人还在形成阶段,当上形成白色斑块时,就会导致一种叫做氟斑问题。

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《卫报》(文章版)

The bones of residents of the area around the lake weaken uncommonly fast, and Onywere was investigating whether this may be linked to high fluoride levels in the water.

该湖周围地区居民骨骼异常快速变弱,奥尼韦尔正在调查这是否可能与水中氟化物水平有关。

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CNN 10 学生英语 2019年4月合集

Fluoride is often added to bottled and tap water to prevent cavities and this is in addition to the fluoride that's added to toothpaste and mouthwash and provided at dentist offices.

瓶装水和自来水中经常添加氟化物来预防龋膏、漱口水和医诊所提供氟化物中也含有氟化物

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6 Minute English 六分钟英语

… And I'm Rob. Alice, I read in the paper recently that the substance called 'fluoride' might be bad for our health. But it's in nearly every brand of toothpaste, isn't it?

我是罗伯。艾丽斯,我最近看到报纸上说一种叫做“氟化物物质对我健康有害。但是似乎所有牌子膏里面都有这种物质,不是吗?

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CNN 10 学生英语 2019年4月合集

In extreme cases this can cause pits in the teeth and some studies outside the U. S. have suggested that pregnant women with higher amount of fluoride in their bodies can have children with lower IQ scores.

在极端情况下,这会导致凹陷,美国以外一些研究表明,体内氟化物含量较高孕妇可能会生出智商较低孩子。

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