查询词典 coloring agent

A method for the preparation of microcellular elastomeric polyurethane foams from a reaction mixture comprising a polyisocyanate component containing at least 85% by weight of 4,4'-diphenylmethane diisocyanate or a variant thereof, a polyol composition comprising at least one polyoxyalkylene polyol having an average nominal hydroxyl functionality of from 2 to 6, an average hydroxyl equivalent weight of at least 1300 and an average oxyethylene content of between 50 and 85% by weight, water, a chain extender having an average hydroxyl equivalent weight of from 15 to 250 and optionally a crosslinking agent, the hardblock-content being more than 45% by weight.

本发明是有关一种制备微孔弹性聚氨基甲酸酯泡沫体的方法，其反应混合物包括：一种含至少85重量％的4，4′－二苯甲烷二异氰酸酯或其变体的聚异氰酸酯组分，一种多元醇组合物，其包含至少一种平均标称羟基官能度从2至6、平均羟基当量至少1300且平均氧乙烯含量介于50至85重量％之间的聚氧亚烷基多元醇，水，一种平均羟基当量为15至250之增链剂，以及视需要使用的交联剂，该硬性嵌段－含量（hardblock-content）大于45重量％。

It was concluded that P2O5 was an effective nucleating agent for this glass system. The nucleation density of this glass system was too low to form tiny crystal after heat-treatment, when it contained no P2O5, and the major crystal phase was lithium silicate. Adding P2O5 resulted in major tiny crystal phase of lithium disilicate after heat-treatment.

结果发现P2O5是该玻璃体系的有效成核剂，未添加P2O5的玻璃体系成核密度低，热处理后不能形成微晶体，且主晶相为硅酸锂；添加P2O5使玻璃在热处理后形成以二硅酸锂为主晶相的微晶玻璃。

There exists the principal-agent relationship between stockholders and managers,which takes on different patterns under different conditions:under the condition of symmetric information,it displays as order-subordinate rela- tion ship,which need not incite managers while stockholders can pay managers regular fee by contract;under the con- dition of dissymmetric information,it displays as a fellowship,which need incite managers because managers may per- form according to the payment.

股东和经营管理者之间存在委托代理关系，这种委托代理关系在不同情况下具有不同的表现形式：在信息对称条件下，表现为命令和服从关系，此时无需对经营管理者进行激励，股东以&强制合同&的形式支付给经营管理者确定的报酬即可；在信息非对称条件下，委托代理关系表现为合伙关系，对经营管理者的激励相当重要，因为经营管理者会根据激励强度来付出劳动。

For the type I dissymmetrical information, the thesis, using the game theory and the principal-agent theory, puts forward the second profit allocation strategy which is based on the first profit allocation strategy and makes comprehensive use of incentive and restraints.

首先，在I类非对称信息下，利用博弈论和委托代理理论，提出了基于一次收益分配策略并综合使用激励与约束机制的二次收益分配策略。

This paper discusses the relation of agent-construction system and agency, sets forth the importance of credit mechanism and points out some arguments such as the imperfect contract, the absence of client, the disuniform target system as well as the dissymmetrical information from the perspectives of law, economics and management.

作为一项创新性管理制度——代建制，拟从法律、经济、管理等多角度探讨这一制度与代理法律关系的联系、信任机制对这一制度的重要性及制度中存在的不完备契约、委托人缺位、不统一的目标系统、不对称信息等问题。

The thesis chose 4, 4\'-diazostilbene-2, 2\'-disulfonic acid disodium saltas cross-linking agent to crosslink poly in commercialNafion117 membranes under the irradiation of ultraviolet.

本论文选择4，4'-双叠氮菧-2，2'二磺酸钠为交联试剂，以紫外光引发，使聚乙烯吡咯烷酮在Nafion膜中发生交联，从而制备了semi-IPN型Nafion／PVP复合膜。

The present invention also relates to a pharmaceutical composition containing at least one of the novel diterpene compounds, and a use of the diterpene compound as a neuroprotective agent.

大意：本发明涉及从牛樟芝子实体分离的新颖的二萜类化合物…本发明也涉及到制药厂的组成至少含有一个此新颖的二萜类化合物，以及使用该二萜化合物作为神经保护剂。

A series of acrylic resins were synthesized by using ditertiary butyl peroxide as a free radical initiator and 2-mercaptoethanol as a chain transfer agent.

以过氧化二叔丁基为自由基引发剂、巯基乙醇为链转移剂，合成了高固体分、低粘度的羟基丙烯酸树脂，其粘度在1000mPa·s以下，固体分高达65%～70%。

A CR/polystyrene IPN blend was prepared by stepwise synthesis based on CR and styrene monomer and using divinyl benzene as crosslinking agent of PS.

以CR和苯乙烯单体为原料，二乙烯基苯为苯乙烯的交联剂，采用分步合成法制备CR/聚苯乙烯互穿网络共混物。

The results showed that when 0.3 g of divinyl benzene was used as crosslinking agent, the crosslinking degree increased significantly from 28.26% to 90.95% with the increase of MAA amount from 4.0 mol% to 10.0 mol%, and this increase became slowly as MAA amount was more than 10.0 mol%; the particle volume expansion was increased gradually as MAA amount increased, and reached a maximum of 42.1% when 12.0 mol% of MAA was used, and perfect porous morphology inside particles was observed even when the crosslinking degree reached 95.4% at 14.0 mol% of MAA.

结果表明：在交联剂二乙烯基苯用量一定(0.3 g)的条件下，随着MAA用量从4.0 mol%增加到 10.0 mol%，聚合物交联程度从28.26%迅速增大至90.95%，当其用量超过10.0 mol%后 P x增大趋势变缓；随着MAA用量的增加，处理后胶粒体积膨胀百分率逐渐增大，在MAA用量为12.0 mol%时Δ V 达到42.1%的最大值，当MAA用量增大到14.0 mol%时，尽管 P x高达95.44%，胶粒仍具有完好的孔状结构。

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