The problem is often overcome by the use of chilled water or the fitting of a reflux condenser which , via the continued refluxing of vinyl chloride monomer , utilizes its laten heat of evaporation for cooling purposes 解决问题的办法是采用冷冻水或安装回流冷凝器，回流冷凝器连续回流氯乙烯单体，利用单体的蒸发潜热冷却反应物料。
2.
Web service is a latest technology and not perfect at this time . it ' s another brand - new idea to develope web service on embedded devices , which is worthy of further studying and researching . in the last part of this thesis , some laten problems are also discussed Webservice技术是最新发展起来的，本身尚不完善，将其应用在资源有限的嵌入式设备上，更是一个崭新的课题，有待进一步的研究和探索。
