氟化

The effects of fluorination ratio、 specific surface area and pore volume of the catalysts on their activities were demonstrated.

研究了催化剂前驱体的热行为，催化剂的晶相以及催化剂的氟化度，比表面积，孔容对催化活性的影响。

The reaction mechanism and the latest research status of displacement fluorination of aromatics are summarized, and the development trends are forecasted also.

摘要综述了芳香族置换氟化的反应机理与最新研究状况，并展望了其未来发展前景。

The optimum conditions of leaching, sulfide precipitation and fluorination precipitation were determined.

确定浸出工艺条件、硫化沉淀和氟化沉淀工艺条件。

After fluorination treating, the stainless steel surface exhibits super-hydrophobic properties, with a water contact angle of about 160°.

该表面经氟化处理后表现出超疏水性，水滴在该表面上的接触角达到了160°。

A series of calix[6]arene derivatives have been synthesized and their performance as PTC in the fluorination of halogenated aromatic compounds has been studied.

本论文合成了一系列的杯[6]芳烃衍生物，并研究了其作为相转移催化剂用于卤代芳烃氟化反应的性能。

A heavy-duty magnetic stirrer, such as Cole-Parmer model is needed during the fluorination.

在氟化过程中需要用一架大功率的电磁搅拌器。

Then, cellular PP films were modified by extraction, oxidation and fluorination in a hydrofluoric acid solution.

红外分析和断面的X射线能谱分析表明，经过相继的化学处理(表面小分子萃取、氧化处理和氢氟酸处理)后，PP孔洞薄膜生成了具有一定(来源：A59BCc747论文网www.abclunwen.com)深度的氟化层。

The effects of fluorination and side-chain identity on supramolecular and thermal behavior were investigated by wide-angle X-ray diffraction, differential scanning calorimetry, and polarized optical microscopy.

的影响和氟化侧链身份和超热行为进行调查广角X-射线衍射，差示扫描量热仪，偏光显微镜。

The manufacturers must consider barrier technologies like fluorination post-treatment in order to improve the permeation performance of the plastic fuel tank.

这个燃油渗透限值使目前的单层HDPE塑料油箱无法满足新的法规，必须对塑料油箱进行表面氟化处理以提高燃油阻渗性。

A method for the determination of CaF2 in fluorspar samples by X-ray fluorescence spectrometry with sodium metaphosphate as flux is proposed.

采用偏磷酸钠作熔剂制备萤石熔融片，用波长色散X射线荧光光谱法测定萤石中的氟化钙。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。