查询词典 ammonia process

We can't make ammonia gas by heating ammonium hydrogen carbonate in the lab.

通过分析、反思、上网查相关资料，探明实验室不能用加热铵盐制取氨气的表层事实和深层原因。

In concentrated solution of cobalt salt precipitation system, the effects of reagents of ammonia carbonate and ammonium oxalate was studied respectively.

溶液中NH4+的加入，在高 pH值条件下，存在钻氨的络合反应和钻的沉淀反应，草酸钻仍保持针状形貌：在低pH值条件下，随着NH4十加入量的增多，草酸钻形貌变得粗短，长径比、粒度减小；最后呈方形，松装比重增加。

The mixture of ammonia and hydrochloric gas can bring nitrogen and ammonium chloride, with white mist being.

把氨气和氯化氢气体混合产生氮气和氯化铵，并且有白雾产生。

However, most soils have a high potential for large shifts of ammonium to ammonia.

然而，大多数土壤都很容易使大量的铵离子转化成氨。

A new method to determine the concentration of ammonia-nitrogen by ammonium ion selective electrode has been introduced in this paper.

摘要本文介绍一种新型的测量氨氮浓度的方法―铵离子选择电极分析法。

A new type of car is now being developed powered by anhydrous ammonia.

日前正在研制一种新型的以无水氨作动力的汽车。

In some ways, anhydrous ammonia is just as safe to handle as gasoline

在某种程度上说，无水氨使用起来与汽油一样安全。

It is prepared by reacting anhydrous ammonia and carbon dioxide gas under very high pressure in the presence of a suitable catalyst.

它是在某种催化剂参与下，由无水氨和二氧化碳气体在高压条件下反应生成的。

Increasing the amount of ammonia used could increase the production of aniline without much effect on the production of phenol.

提高反应原料中氨水对苯的比例，能提高苯胺的收率，且不会增加苯酚的生成量。

In the first step of thedouble annulation route, 2-amino-3-carbamoyl-5,6-dihydro-4-pyridones 2 werecreated in high to excellent yields by a formal [5C + 1N] annulation reaction ofketene--acetals 1 with ammonia.

第一步，二硫缩烯酮1和氨源通过[5C + 1N]加成反应产率极高的得到了2-氨基-3-氨基甲酰基-5，6-二氢-4-吡啶酮2。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。