查询词典 chlorine hydride

The factory releases some waste liquid including fluorhydric acid, Not only the products cost is increased, but also the environment is polluted, for this reason, some ways that fluorine hydride is recycled from the acid waste liquid are introduced in this paper.

针对辽宁省阜新市是含氟芳香族化合物的重要生产基地，工厂排放的废液中含有氟化氢，过去增加了产品的生产成本，也污染了环境。

The method of using fluorine hydride to produce fluorobenzene is the best method,which overcomes the shortcoming of the Schiemann method,it can make the cost lower,reduce waste gas and raise recovery rate.

用无水氟化氢法生产氟苯是国内外最先进的方法，它克服了传统席曼法的缺点，它的显著优点是使成本降低、废气减少、收率提高，本文介绍了生产氟苯的两种主要方法的合成原理，重点介绍了无水氟化氢法生产氟苯的生产工艺过程及对所产生的废酸、污水、废渣的处理。

The key intermediate 3-methylaminopiperidine was synthesized from 3-methylaminopyridine by two methods,formylation and lithium aluminium hydride reduction or condensation with triethyl orthoformate and sodium borohydride reduction,and then hydr...

以3-氨基吡啶为原料，分别通过甲酰化反应、氢化铝锂还原和原甲酸三乙酯缩合、硼氢化钠还原两种方法得到3-甲胺基吡啶，最后经催化氢化得到中间体3-甲胺基哌啶。

The key intermediate 3- methylaminopiperidine was synthesized from 3-methylaminopyridine by two methods, formylation and lithium aluminium hydride reduction or condensation with triethyl orthoformate and sodium borohydride reduction, and then hydrolysis.

以3-氨基吡啶为原料，分别通过甲酰化反应、氢化铝锂还原和原甲酸三乙酯缩合、硼氢化钠还原两种方法得到3-甲胺基吡啶，最后经催化氢化得到中间体3-甲胺基哌啶。

Currently, no domestic enterprise is able to conduct industrial production of hyperpure silicon hydride, all of which has to be imported; therefore development of relevant high-tech industries has been restricted.

国内目前还没有一家企业实现超纯硅烷的工业化生产，所需超纯硅烷全部依赖进口，制约了国内相关高科技产业的发展。

Electronic gases are meant to become hyper-pure and hyper-clean, and market prospects of hyperpure silicon hydride are quite promising as relevant industries in China are growing fast.

超纯、超净是未来硅烷等电子气体发展的方向，随着国内相关产业的迅速发展和规模化，超纯硅烷的市场前景广阔。

Synonyms: Silicon tetra hydride, monosilane, silicane

同义词：四氢化硅，甲硅烷，硅烷

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。

Hydride Generation-Atomic Fluorescence Spectrometry was applied to determine the concentrations of inorganic arsenic, trivalent arsenic As(superscript 3+ and pentavalent arsenic As(superscript 5+.

目的 应用氢化物发生－原子荧光分析技术测定砷中毒病人尿液中总无机砷、三价砷As

In this mechanism, a phosphine ligand in the Ru hydride complexes is replaced by protonic solvent ROH to generate the chain carrier.

三、反应机理论文提出，在固载Ru基催化剂上的scCO〓加H〓生成HCOOH的反应中，CO〓的活化在Ru配合物的作用下，以反插入Ru-H键，生成金属-羧酸配合物的形式进行。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48