查询词典 fluoride

Lanthanum oxide-coated alumina was prepared by a solid-state reaction, and its ability to adsorb fluoride from aqueous solution was investigated.

通过固相反应合成了氧化铝负载的氧化镧吸附剂并研究了其对水中F-的吸附。

The stability of alkaline earth sulfides can be improved by two methods, one is by coating with fluoride or oxides, and another is by forming of complex sulfides with Ga.

可通过两种方法改善碱土硫化物的稳定性，其一是通过用氟化物或氧化物的包覆，另一是通过与Ga生成的复合硫化物。

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。

The histiological characteristcs, and activities of alkine phosphatase and acid phosphatase of the implantan were examined to study the effects of fluoride on biological activities of BMP.

结果 氟对BMP的生物活性有直接的影响，氟能促进BMP将更多的成纤维细胞转化为成骨细胞，并能增强成骨细胞的功能，加速钙盐沉积，而破骨细胞功能有所下降。

Process comprising contacting initiator with alkylene oxide in the presence of hydrogen fluoride and a double metal cyanide complex catalyst.

一种方法，其包括说明书摘要在氟化氢和双金属氰化物复合催化剂存在下使引发剂与亚烷基氧化物接触。

A new manufacturing technology of ammonium fluoride white carbon black was studied.

研究了一种生产氟化铵和白炭黑的新工艺。

In order to modify the deviation angle of ultraviolet polarizing prism of iceland crystal and barium fluoride, a new design was given by changing the structure angle of the iceland crystal.

为了修正紫外偏光镜透射光束偏离角，提出了一种新的设计思路，通过改变冰洲石一端的结构角来实现透射光束无偏离。

It is found that hydrazone (2) with a nitrogroup has excellent ability for the detection of fluoride anion.

对四种分子内具有氢给体的电荷转移化合物与阴离子物种间的相互作用进行了研究。

These studies indicate that the boron fluoride with nitromethane or acetone system with higher separation factor is superior to the anisole system used currently,but a more detailed study is.

采用苯甲醚、硝基甲烷、丙酮、甲基异丁基甲酮4种络合剂分别与三氟化硼合成出了4种络合物体系。

The results suggested that selenium might antagonize the neurotoxicity of fluoride on behavior and morphology.

硒是人体必需的微量元素，大量研究表明：适当浓度的硒对氟中毒有较强的拮抗作用[5～ 7] 。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。