fluoride

The nano-sized PTFE particle generat metal fluoride, forms physical boundary film and repair the injured surface. Submicron-sized PTFE works as rolling element, micron-sized PTFE hinders relative motion of the friction surfaces due to the distortion from pressing.

纳米PTFE微粒通过生成金属氟化物、微粒修复作用和形成物理边界膜，亚微米PTFE通过滚动体作用。微米PTFE在摩擦副间发生变形而阻碍摩擦表面相对运动。

Fluoride emission from certain brickfield caused severe reduction of rice output nearby the factory.

某砖瓦厂排放的废气造成附近水稻严重减产。

Calcium Fluoride Crystals Growth by Temperature Gradient Technique

温度梯度法生长氟化钙晶体

According to the different contents both silicon tetrafluoride and hydrogen fluoride in production of phosphate fertilizer, they are absorbed with ammonium fluoride and/ or ammonia to obtain high concentration solution of ammonium fluosilicate, which is ammoniated and separated.

依据磷肥生产排出含氟废气中的四氟化硅和氟化氢含量的不同，以氟化铵和/或氨进行吸收，得到高浓度的氟硅酸铵溶液。

A method for the design of an unobscured reflective zoom system with three mirrors is described.

本文主要介绍了一种可用于设计无遮拦三反射镜变焦系统的方法。

Optical constants of fluoride films in the DUV range

氟化物材料在深紫外波段的光学常数

Thermodynamic model for systems containing strong associated hydrogen fluoride

含强缔合氟化氢体系的热力学模型

Preliminary studies of DTF reagent on defluoridation for tea fluoride

DTF降茶氟剂降茶氟初步研究

Most urban water supplies in the United States now contain fluoride in varying amounts.

现在美国大部分城市供水中都存在含量不一的氟化物。

Objective To study the effect of DTF emulsion on fixing fluoride for tea fluoride.

目的探讨DTF乳剂固定茶叶氟效果。

Unobscured by the dust of history.

不受历史尘埃的蒙蔽。

This is because toothpaste contains fluoride.

这是因为牙膏中含有氟化物。

Both high temperature shock and fluoride solution administration could cause great change in CAT activity and the degree of change varied with silkworm race, sex, stage and administration dose.

高温冲击和氟化物添食都能引起CAT活力的显著变化，但变化的幅度因品种、性别、时期和添食剂量而有所不同。

Lithium fluoride thermoluminescence dosimeter His son had no explanation for the light, either.

氟化锂热释光剂量计但也无法解释这道光。

However, along with the gradual decrease of al-smelting production cost, fluoride is becoming one main matter for decrease of production cost.

但随着电解生产成本的逐渐降低，氟化铝的消耗成为电解生产成本中的一项重要内容。

We have investigated the thermally induced crystalline transformations of Polyvinylidene fluoride and a copolymer of vinylidene fluoride and tetrafluoroethylene using DSC method and infrared spectroscopy.

本文报导利用DSC法及红外光谱法研究聚偏氟乙烯及偏氟乙烯&四氟乙烯共聚物热诱导的晶型转变。

Change of skeletal fluorosis with osteosclerosis drunk low fluoride water for long time

长期改饮低氟水后硬化型氟骨症的变化

Some people rinse with mouthwash as a workaround — but that may not be such a great idea either, since toothpaste has a significantly higher concentration of fluoride than mouthwash does.

有些人会用漱口水来作为变通之法，但是这个主意也不算太好，因为牙膏的氟化物浓度比漱口水要高得多。

Removal Carbon Fluoride Impurities From Raw Carbon Tetrafluoride by Pressurized Rectification

加压精馏除去四氟化碳中六氟乙烷等氟碳杂质的研究

The child ever dwells in the mystery of ageless time, unobscured by the dust of history.

小孩永远住在不老的时间的神秘里，

In the paper, the test results about fluorine retention in the alkaline-earth metal compounds combustion were studied to develop high-efficient fluoride retention additive.

为了开发高效燃烧固氟剂，通过实验研究了碱土金属化合物的燃烧固氟效果。

Study on the mechanism of antagonism of sodium tetraborate to sodium fluoride

硼对氟化钠的拮抗作用机理的探讨

Test on the Fluoride Tolerance of Commercial Silkworm Variety in Zhejiang Province

浙江省现行蚕品种耐氟性比较试验

Protection and its Mechanism of Sodium Tetraborate on the Kidneys and Cultured Renal Cells from Fluoride Damage

四硼酸钠对氟致肾损伤的拮抗作用及机理

On the morphology of highly oriented films of copolymers of vinylidene fluoride and tetrafluoroethylene

偏氟乙烯-四氟乙烯共聚物高取向薄膜的形态结构研究

It is a proven fact that fluoride strengthens growing teeth.

氟化物可以强化生长中的牙齿，这是已证明的事实。

The Grafting Modification of Fluoride Monomers onto Silk Fiber

含氟单体对真丝的接枝改性

The composition, appearance and grain size of dysprosium fluoride product have been characterized by XRD, TG, DTA, TEM and X-ray fluorescence analysis. The results show that the DyF 3 product have satisfactory quality.

用X射线衍射、X射线荧光光谱分析、差热－热重及透射电镜等分析方法对产品进行了组成、形貌和粒径分析，获得了理想的结果。

Objective To study the effect of DTF reagent on defluoridation for tea fluoride.

目的探讨DTF制剂降茶氟效果。

I do not believe that the Iks are representative of isolated, revealed man, unobscured by social habits.

我不相信iks人是孤立无援，因为社会习惯改变而本性暴露的人类代表。