检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:张华
机构地区:[1]大庆石化分公司腈纶厂,黑龙江大庆163714
出 处:《炼油与化工》2002年第3期16-17,共2页Refining And Chemical Industry
摘 要:大量的氟利昂等含卤素化合物被紫外线分解形成活性氯,与臭氧发生连锁化学反应,使臭氧层遭到破坏,至使对人体最有害的短波紫外线有可能达到地面。为降低各种波长的紫外线对人类的危害,需开发一种防紫外线穿透的纤维,以满足人们不断增长的生活需求。huge amount of halogen contained compound such as Freon is decomposed by ultraviolet ray to form activated chloride,which can have chemical chain reaction with ozone and cause chemosphere to be defected,and make it possible for short wave ultraviolet ray which is most harmful for human body to ground.In order to decrease the harm of various ultraviolet rays to the human beings,a king of ultraviolet ray penetration resistant fiber needs to be developed to meet uninterrupted increasing living requirement of people.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.90