查询词典 condensation

In this section, we focused on the investigation of the condensation, Michael reaction of different aromatic aldehyde with different aryl substituted ketones under solvent-free and PTC conditions, obtained polysubstitutedcyclohexanol derivatives in mordent yield when using TBAB as the catalyst.

通过实验发现，TBAB对该反应具有良好的促进作用，使在液相中需十几个小时甚至几十个小时才能完成的反应，在无溶剂条件下几分钟就可完成，并且使液相中两步完成的反应，而在无溶剂条件下一步就可完成，且产率优良。

And in this resin most of the phenol was free, that was to say it didn't co-condense with UF species, MF species, and even formaldehyde. So the method to add phenol to MUF resin in the end of the preparation of MUF resin couldn't guarantee the co-condensation between MUF resin and phenol to come forth.

另外，几乎所有的苯酚在树脂中也都处于游离状态，它既未与UF树脂或MF树脂发生反应，也未与游离甲醛发生反应，因此，在树脂合成后期向树脂中加入苯酚的方法不能保证共缩聚反应的发生。

We studied two separate parts: DNA condensation induced by multivalent ions and DNA transport induced by electric field in nanostructures.

我们的研究分为两个部分：多价正离子诱导DNA自发凝聚及电场对奈米结构中DNA操控。

In order to examine the moisture condensation status on the inner surface of the building envelope, CFDsimulation was applied to the ventilation and air conditioning system design for a natatorium in Hangzhou.

在杭州某游泳馆通风空调设计中，为了考察围护结构内表面的结露情况，利用简化的模型进行了CFD数值模拟。

This article which unifies zijinggang school area natatorium project in Zhejiang University, has analyzed the moist room roof as well as the outer wall condensation question, and proposed the solution measure.

本文结合浙江大学紫金港校区游泳馆项目，分析了潮湿房间的屋顶以及外墙的结露问题，并提出了解决措施。

The conventional development fashions for the gas condensate fields mainly are natural depletion and cyclic gas injection: using the method of gas injection require know clearly about the formation and need more investment, so this method is used few in our country; although a good deal of condensate oil is loss in the formation because of the appearance of retrograde condensation by the method of natural depletion, it is the main development method in China because of the lower investment and lower perception level abut the formation .

凝析气藏主要有衰竭或循环注气两种开发方式：注气开发对地质条件以及资金投入要求较高在我国仅有少数气田采用该方式：虽然采用衰竭开发方式大量的液态烃由于反凝析而损失在地层中，但是由于其低的投资费用、对地质认识程度要求不高，该方式在我国仍然是主要开发方式。

In the condensation process, a phase transfer catalyst is added, the mother liquor is recycled, proton polarity solvent crystallization is used to improve the purity of nitryl coumpounds, and the yield is above 98.0%.

缩合反应中加入相转移催化剂，母液循环使用，并采用质子极性溶剂重结晶，提高了硝基化合物的纯度，收率达到98.0％以上。

They shall protect the enclosed equipment against a static head of water of six (6) feet for thirty (30) minutes, dust, splashing or external condensation of noncorrosive liquids, falling or hose directed water, lint and seepage.

这种外壳应该保护壳内设备不受6英尺静水压持续30分钟的侵蚀，不受灰尘、无腐蚀性液体的喷洒或外部凝结，水瀑或软管流出的水，棉花和渗水的侵蚀。

One of the metastable states of strongly nonideal plasma is Rydberg matter which forms upon condensation of excited atoms.

的一个亚国家强烈非理想等离子体德伯问题形式凝结后的兴奋原子。

Its there is noplace in, through does not evaporate, the condensation, theprecipitation and so on continuously unceasingly circulates.

它无处不在，通过蒸发、冷凝、降水等连续不断地循环。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。