查询词典 chemical compound

The approach of preparation method is that, first, blend yttria into hot aquafortis, add silicone grease chemical compound after reaction, cool it to form gel. Second, heat the gel for 1-48 hours to acquire solid fruitage. Third, igloss the fruitage in reducing gas for 1-48 hours. Forth, add anorg and then igloss it in reducing gas for 1-48 hours in the temperature between 800-1600 degree.

它的制备方法，包括以下步骤：1将氧化钇溶入热浓硝酸中，反应后加入硅酯类化合物，恒温形成凝胶；2凝胶加热1-48小时，得到固相产物；3在还原气氛中灼烧1-48小时；4加入无机盐，在800-1600℃范围内，还原气氛中灼烧1-48小时；5稀酸洗涤，干燥后得到稀土激活Y2SiO5荧光粉。

Especially to atomic structure, chemical bond theory and molecular structure, coordinate chemical compound ,etc.

重点对原子结构、化学键理论与分子结构、配位化合物等进行图片或动画素材的制作。

Azide:a chemical compound that contains the group N.

叠氮化物：一种化合物，包含基团N。

Bactericide Chemical compound which has the property of killing bacteria.

杀菌剂 具有杀死细菌作用的化合物。

In the rst two examples, the basic binary element mightbe a chemical compound, while in the last it might be the state of ring of a neuron.

在这些模型里，有N个动态元素，定义为布尔变量，一步一步逼近，时钟频率由时间变量。

Chemical formula :Expression of the composition or structure of a chemical compound.

化学式：化合物的组成或结构的任何一种表达式的总称。

No chemical compound solution and does not require chemical treatment, there is no environmental pollution

不用化学药液，不需要化学处理，没有环境污染

The latest chemical product prices fell, demand has not really visible downstream, the short-term rise in oil prices in the channel, in which phase fluctuations, we continue to be optimistic about with anti-cyclical businesses and new materials, anti-cyclical embodies New Chemical Materials decrease in prices of raw materials is less than the decrease in prices of raw materials at the same time, the cost shift ability, to maintain price stability; civil explosive materials companies fell as a result, prices, countries can enjoy the benefits of; domestic urea production capacity excess of export disruption, high product costs, industry consolidation is inevitable, so concerned about the urea industry with technical advantages and cost advantages of urea enterprises: China Shandong Hengsheng; Although the overall situation of excess nitrogen, but because of the regional characteristics of the domestic fertilizer domestic part of the region will be in a high urea prices, the relevant listed companies will benefit from, such as the Liao Tung Chemical; compound assets as light industry, with the weak cyclical characteristics, the stability of industry profitability, industry leaders concerned about the compound: para Tian shares ; potash by the international market, short-term decline of domestic potash fertilizer prices would have difficulty, Salt Lake Potash in 2009 will be guaranteed a profit, Salt Lake Potash concern.

最新化工产品价格出现下跌，可见下游需求并未真正起来，短期石油价格处在上升通道，在这种上下波动阶段，我们继续看好具有抗周期性的新材料企业，抗周期性体现了化工新材料的产品价格下降幅度小于原料的下降幅度，在原料价格上涨同时，成本转嫁能力较强，价格维持稳定；民爆企业由于原料下跌，价格上涨，可以享受国家指导价的益处；由于国内尿素产能过剩，出口受阻，产品成本居高不下，行业整合在所难免，因而关注尿素行业内具有技术优势和成本优势的尿素企业：华鲁恒升；虽然氮肥全局过剩，但由于国内化肥的区域性特征，国内部分区域尿素价格将处于高位，相关上市公司将因此受益，如辽通化工；复混肥作为轻资产行业，具有弱周期性特点，行业盈利稳定，关注复混肥行业龙头：芭田股份；钾肥受制于国际市场，短期内国内钾肥价格恐难下跌，09年盐湖钾肥盈利将会有保证，关注盐湖钾肥。

Propylene is one of the important chemical industry material , a half of its produce outputs are used to make chemical industry products in America , then the reaction's product between the rest and isobutane is alkane chemical compound demanded in petroleum .

丙烯是重要的化工原料，美国将生产量的二分之一用于制造化工产品，余下的大部分则与异丁烷反应制造汽油中所需要的烷化物。

Tautomerism: Existence of two or more chemical compound s that have the same chemical composition but different structures and that convert easily from one to another.

互变异构体现象：两种或多种化合物，具有相同的化学组成，但结构不同，很容易从一种转换到另一种。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。