首页 | 本学科首页   官方微博 | 高级检索  
     

AN ENTERPRISE THAT HAS MASTERED THE GOLDEN TOUCH──Heilongjiang Zhong chao Nano Industrial Co., Ltd
摘    要:THERE is a kind ofceramic bearingsthat can endurevery low temperatures (-260℃)and very hightemperatures ( 600℃), strongacid, strong alkali, and workingconditions of 50,000 revolutionsper second, and their life span ismuch longer than that of metallicbearings. Why? because thesebearings use Nano compositematerial (l Nano =1 / l,000,000,000 millimeter).Bricks were used to buildhouses, and then the bricks werereplaced by reinforced concrete,which was then replaced byhigh-tech fibers (includin…

本文献已被 CNKI 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号