lanthanum fluoride was prepared by dropping hydrofluoric acid into lanthanum hydroxide.

1、

fluoride-resistant plastic has better performance of sulphuric acid, using chen fu pump (f46) is a more economical choice.

氟塑料具有较好的耐硫酸性能，采用衬氟泵（F46）是一种更为经济的选择。

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2、

fluoride strengthens teeth by penetrating the tooth structure and replacing lost minerals to repair acid damage.

氟化物可以增强牙齿保护，是通过进入牙齿结构，重新矿化修复酸所带来的破坏。

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3、

by introducing synthesized intermediate, cyanuric fluoride, into the c.

通过合成中间体氟代均三嗪并将其引入C。

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4、

dental cavities can be prevented by a low level of fluoride constantly maintained in the oral cavity.

经常在口腔内保持低量氟化物，可预防龋齿。

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5、

fluoride also stimulates the production of dna and new osteoblasts, which results in formation of new bone.

氟化物也刺激生产和新的成骨细胞的DNA，从而形成新骨。

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6、

the synthetic fluoride-reducing technology can reduce the contents of fluoride in drinking water effectively.

降氟综合技术能够有效地降低饮用水的氟含量；

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7、

china's rubber fluoride facing development opportunities, while also facing severe challenges.

我国氟橡胶面临发展机遇的同时，也面临着严峻的挑战。

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8、

fluoride with sodium fluoride, potassium fluoride, stannous fluoride and sodium monofluorophosphate.

氟化物有氟化钠，氟化钾，氟化亚锡及单氟磷酸钠。

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9、

water quality - determination of fluoride ion - potentiometric method.

水质.氟离子的测定.电位计法

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10、

for children whose adult teeth haven't shown yet, fluoride still improves tooth enamel, the highly mineralized tissue on teeth's surface.

对于儿童恒齿并没有长出，氟化物仍能改善牙齿的瓷釉，这是牙齿表面一层高矿化组织。

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11、

your dentist can prescribe a stronger concentration of fluoride in a gel, toothpaste or rinse if you need it.

如果你需要的话，你的牙医可以给你开更高含量的处方型的氟凝胶，牙膏或漱口剂。

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12、

fluoride exists widely on earth as the essential microelement of the life, it has versatile physiological functions.

氟是地球上广泛存在的元素，作为机体生命活动必需的微量元素，具有多方面的生理作用。

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13、

it contains a solid dose of fluoride and works better than the antibiotic tetracycline.

它包含了一定的氟化物而且效果优于抗生素——四环素。

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14、

agropharmaceutical products. sodium fluoride for agricultural use. determination of the titre.

农药产品.农用氟化钠.滴定测定法

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15、

although the basis value is a little high, the filter is good absorbent of gaseity and aerosol fluoride.

经浸渍处理的滤纸本底氟略有升高，但对气态或气溶胶态都能更好地阻留吸收；

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16、

the tactile and slip sensor using pvdf (polyvinylidene fluoride) as sensitive material is fitted on the tele-manipulator finger.

触滑觉组合传感器以乐电材料PVDF为敏感体，安装于遥控机械手的手指上。

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17、

we introduced one simple method of synthesizing quaternary ammonium fluoride and compared its reaction character as a fluridizer.

介绍了制备氟代季铵盐的简便方法，并用其作为反应的氟离子源比较了其反应性。

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18、

a binder for a battery electrode comprising a vinyl fluoride-based copolymer.

一种用于电池电极的粘合剂包含一种乙烯基氟基共聚物。

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19、

fluoride treatment included both excised leaves cultured in nutrient solutions and leaves from plants fumigated with hf .

氟化物处理既包括培养在营养溶液中的切离叶片和HF熏气的植株上来的叶片。

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20、

highdose fluoride has a strong effect in the ameloblasts at the bell of differetiational stage and secretory stage.

过量氟对钟状分化、分泌期成釉细胞的细胞形态有较强影响。

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