氢化

Moreover, hydrogen passivation is beneficial to improve electricalproperties of cast multicrystalline silicon only after metallic impurities was gettered c

另外，氢钝化只有在金属杂质被吸杂之后才是最为有效的。

Dehydrizing processes and mechanical properties of samples after gas nitriding were studied .

对气体氮化后的除氢工艺及力学性能进行了研究。

The quantity of trace arsenic in grain and soil was determined by hydride nondispersion atomic fluorescence method.

本文采用氢化物无色散原子荧光法测定粮食和土壤中微量砷含量。实验中选择了测试时的最佳条件，包括介质酸度、还原剂KBH_4的浓度和流速、载气流量、原子化温度等。

As a novel class of self-assembled materials, Organogel s have receivedconsiderable attention in recent years because they can organize into regularnanoarchitectures through specific noncovalent interactions including hydrogen bonds,hydrophobic interactions,π-πinteractions and Van der Waals forces.

作为一类新型的自组装材料，有机小分子凝胶通过分子间氢键作用、π-π相互作用、范德华力等可以形成有序的三维网络结构，从而使适当的有机溶剂凝胶化。

Study on the preparation of γ-alumina-supported molybdenum phosphide hydrofining catalysts;2. Silica-supported molybdenum phosphide s were prepared in a fixed bed reactor by an in situ reduction method from their oxidic precursors.

以SiO2为载体，用钼酸铵和磷酸氢二铵作钼源和磷源，采用共浸渍法制备了负载型磷化钼氧化态前体；在固定床反应器上，用H2原位还原制备了MoP/SiO2催化剂。

But, we should first drastically reduce the residual donors before solving problems related to the hydrogen passivation of acceptors.

但是，我们应该做的先大幅降低残余的捐赠者之前解决问题相关的氢钝化的杂质。

In order to find highly active pesticide, three series of 5--12-substituent-benzo phenanthridine derivatives were synthesized through the reaction of 2-methylbenzonitrile with dif-ferent aldehyde, and further dehydration with DDQ or N-methylation with NaH and CH3I, respectively.

为了寻找新的高活性农药，利用2-甲基苯甲腈与不同的醛反应，再通过2，3-二氯－5，6-二氰基－1，4-苯醌脱氢或NaH和CH3I氮甲基化，合成了3个系列共18个5-取代氨基－12-取代苯并菲啶衍生物，其中15个是未见文献报道的化合物。

Several types of ligand reactions observed under hydrothermal condition were summed up:(1) hydrolysis of pyridine nitrile, aldehyde and ester in mixed water and alcohol into pyridine-carboxylate;(2) replacement of carboxylate group with sulfonic group;(3) coupling of phenanthroline by dehydrogen;(4) oxidative coupling of methanol into oxalic acid;(5) hydroxylation of isophthalate.

总结了以往在水热条件下观察到的几类配体反应：（1）吡啶腈、醛和酯在醇和水混合溶液中水解成吡啶羧酸；（2）磺基取代羧基反应；（3）邻菲啰啉的脱氢的聚合：（4）甲醇被氧化偶合生成草酸：（5）间苯二甲酸的羟基化反应。

After this, the experiment proved that why the natural fires occurred over 100 times is that the phosphoreted hydrogen burns itself and ignites the methane.

此后，经过实验证明，原来这是由于磷化氢自燃引燃甲烷所致。

A reduction-coupling-etherification reaction between aromatic aldehydes or ketones (1) and alcohols ( 2 ) to yield corresponding diether ( 3 ) of pinacol in the presence of tin and chlorotrimethylsilane.

在三甲基氯硅烷、四氢呋喃体系中，芳香醛、酮和醇在金属锡的作用下发生还原-偶联-醚化反应生成相应的频那醇二醚类化合物。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。