When the chemical ( usually diluted with oil - based carrier ) is heated , it is vaporized in a combustion chamber and then expelled via an outlet tube to form a dense fog cloud when it condenses on contact with cool ambient air 当化学液体(通常以油剂稀释)加热后，经排气管排出，一旦接触外界温度较低的空气便凝结成一团烟雾。即使地方给茂密的植物或其他
Economical and practical organobentonite thickening rheological auxiliary agent have advantages of good thickening , settleability resisted , diversity resisted , anti thixortopy and colloid stability . it is widely use in the business lines of oil paint , printing ink , oil - base filler and gasked cement . quality target 经济实用型有机膨润土增稠流变助剂具有良好的增稠性防沉降性分散性触变性和胶体稳定性广泛应用于油漆油墨油性腻子及密封胶等行业。
Firstly , in this paper , i introduced importance of using computer to support group decision , character , goals , technology level of gdss , and development and defect of gdss ; secondly , i discussed background , development , character and application of xml / rdf technology ; and then i introduced ontology technology , and integration , model method and application of it ; what ' s more , i introduced foundation , layer structure , language description of ontology language oil ; in the end , by employing ontology / oil technology in gdss , i introduced hardware and software structure of gdss , and through practising in the natural gas scheduling decision support system in emergence , i explained model base and rules base of oil - based gdss , furthermore i introduced decision procedure of gdss 本论文首先详细介绍了用计算机支持群体决策的必要性，群决策支持系统的特点、目标、技术层面，及群决策支持系统的发展和存在的不足；其次介绍了xml rdf技术的由来，发展，特点和应用领域；然后着重介绍了ontology技术，以及它的集成、建模方法和应用；再次介绍了领域模型语言oil的基础、分层结构、语占描述及它对rdfo ）的扩展；最后，把01 。 toiogy 01l技术引入到群决策支持系统中，介绍了群决策支持系统的软硬件结构，并结合在天然气调度决策支持系统项目中的实践，说u了基于0几的群决策支持系统的模型库及推理规则库的建立，还介绍了群决策支持系统的抉策流程。
In order to study the direct relation between oil - base drilling fluid performance and cement job quality , a new developed evaluation method ( artificial core method ) was adopted ; the effects of the oil - base drilling fluid system and its main components on the shear cementing strengths of the first and second interfaces in cementing operation were investigated ; and those of the different mix slurry ratios on the gel strength , initial set time , final set time of slurry and the compressive strength of bond cement were examined too 摘要为了研究油基钻井液性能和固井质量之间的直接关系，采用新建立的评价方法人工岩心法，考察了油基钻井液体系及其主要组分对固井作业中第一、第二界面剪切胶结强度的影响规律，以及不同混浆比例下对水泥浆胶凝强度、初凝时间、终凝时间和水泥石抗压强度的影响规律。
