氟化的

With the coordinated interacton of the abrasive particles in dentifrice, can it abrade or corrode dental restorations made from titanium and change their luster and color so as to influence their appearance and long-term use.

含氟牙膏中一般含有氟化钠或单氟磷酸钠，pH值低于7，在摩擦剂的协同作用下是否对口腔中钛制修复体有磨损和腐蚀作用，使其发生失泽和变色，以致影响它的美观和长期使用？

The development history of calcium fluoride (CaF2) crystals is introduced; its basic perforanmances and properties are summarized.

简述了氟化钙(CaF2)晶体的发展历史，总结其光学特性，介绍了氟化钙晶体的生长新工艺技术和发展。

Perfluoroguanidine can be prepared by the direct fluorination of dry ammeline with 5% fluorine at about -16℃.

全氟胍可以由于的三聚氰酰胺，用5％的氟在约－16℃直接进行氟化制得。

In this paper, a new method with fluorination assited ETV-ICP-AES has been proposed for determination of refractory elements and REEs.

因此，本论文提出以聚四氟乙烯为氟化剂，采用氟化辅助ETV-ICP-AES测定难熔元素和稀土元素的方法，并对此进行了深入系统的研究，其主要内容如下

Perfluoroguanidine can be prepared by the direct fluorination of dry ammeline with 5% fluorine at about-16℃.

全氟胍可以由干的三聚氰酰胺，用5％的氟，在约－16℃直接进行氟化而制得。

The structure characteristics and lubricate theory of nanometer graphite fluoride were analyzed,and tribological properties of nanometer graphite fluoride were researched on four-ball machine.

探讨了纳米级氟化石墨的结构特征和润滑原理，使用四球摩擦试验机研究了纳米级氟化石墨的摩擦学性能。

This paper presents the development and the actual state of nitrogen trifluoride in China,analyzed the market of nitrogen trifluoride and give the advice.

综述了我国三氟化氮的发展和现状，分析了市场形势，并提出了三氟化氮今后发展的对策。

Determination of the uranium content in nuclear grade uranium hexafluoride, uranyl fluoride solutions, uranyl nitrate solutions, uranium oxide, uranium dioxide, powder and pellets; gravimetric method

核子纯的六氟化铀。氟化铀溶液。硝酸溶液。氧化铀粉末。二氧化铀粉末和颗粒铀含量的测定。重量分析法

In order to reduce the production cost of aluminum fluoride by wet process ,and to use the local mineral resources,hydrofluoric acid,sulfuric acid and kaolinite were used as raw materials to produce aluminum fluoride by wet process .

为了降低湿法氟化铝的生产成本，同时利用本地的矿产资源，利用氢氟酸、硫酸、高岭土为原料生产湿法氟化铝。

Silicon oxide/Fluorinated amorphous carbon/Silicon oxide multiple-layered films and one-layered Fluorinated amorphous carbon films were prepared using Microwave electron cyclotron chemical vapor deposition reactor with SiH4, O2, CHF3 and CH4 as source gas and were annealed in nitrogen ambience in order to investigate their thermal stability.

食用80％Ar稀释的SiH4，O2，CHF3和CH4作为前驱气体，利用微波电子回旋共振等离子体化学气相沉积方法制备了氧化硅／氟化非晶碳膜／氧化硅(SiO_x／a-C：F／SiO_x)多层膜与单层的氟化非晶碳膜，并在N_2氛围退火处理中考察其热稳定性。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。