氟化

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

A bstract: Fluorination is one of the most effective chemical methods to modify and control physicochemical properties of diverse carbon materials.

氟化是修饰和控制炭材料物理化学性质的有效方法之一，炭材料的多样性和宽范围的 C-F 键是氟化炭材料具有多种多样性质的基础。

No need extra investment on new equipments and facilities when working with a fluorination treatment supplier.

与氟化处理服务商合作，不需要塑料油箱制造商的额外投资，氟化处理成本低

Fluorination technology was used by industries widely. The fluorinated HDPE fuel tanks for SORE have been approved by CARB.

氟化处理技术得到行业的普遍认可，经氟化处理的HDPE通机油箱已通过CARB的认证

The orthogonal design method is used for preparation of rare earth fluoride by rare earth oxide(Gd_2O_3) fluorination with NH_4HF_2 in this paper.

采用正交试验法，研究了用氟化氢铵作氟化剂直接与稀土氧化物(Gd2O3)反应，制备稀土氟化物的工艺，确定了氟化的最佳工艺条件，并进行了分析讨论。

The dry process aluminum fluoride divides into the hydrogen fluoride preparation according to the technical process (including acid to material, fluorspar to give material, hydrogen fluoride reactor) and the aluminum fluoride preparation including the fluid bed, exhaust processing, end product processing.

干法氟化铝按工艺流程分为氟化氢制备（包括酸给料、萤石给料、氟化氢反应炉）及氟化铝制备包括流化床、尾气处理、成品处理。

The main factors affecting the decompounding rate of sodium fluosilicate by calcined soda were confirmed.

探讨了碳酸化法合成冰晶石的工艺条件，确定了影响纯碱分解氟硅酸钠的分解率的主要因素，试验结果表明：氟化钠溶液的精制、n(6F)/n、反应温度等对冰晶石性能有显著的影响。

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。

Methods: The DNA damage was measured after L-02 cell were incubated with 80μg/ml sodium fluoride, 1.73μg/ml selenium, 80μg/ml sodium fluoride and 1.73μg/ml selenium using Single Cell Electrophosis respectively.

采用80μg/ml氟化钠、1.73μg/ml亚硒酸钠以及80μg/ml氟化钠和1.73μg/ml亚硒酸钠对培养的L-02细胞进行染毒，24小时后用单细胞凝胶电泳技术检测各组L-02细胞DNA损伤情况。

In the occurrence of arcs discharges, spark discharges and corona discharges, sulfur hexafluoride (SF6) would be decomposed to complicated byproducts such as carbon dioxide (CO2), carbon tetrafluoride (CF4), etc.

六氟化硫（SF6）气体在电弧、电火花和电晕放电的作用下会发生分解，产生二氧化碳（CO2）、四氟化碳（CF4）等分解产物。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐