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Preparation of dual function catalyst with metal loaded MCM-22 molecular sieve hollow sphere by preparing MCM-22 molecular sieve hollow spheres with multi-stage channel using carbon black particles as template, and loading active element. 专利
申请日期: 2010-01-01, 公开日期: 2010-01-06
作者:  CHU N LU J WANG J YANG J YIN D ZHAN
收藏  |  浏览/下载:3/0  |  提交时间:2019/12/24
Intelligent vibration isolator, has thick wall shape memory alloy hollow spheres placed on upper part raised at lower end of piston connecting rod, and thin wall shape memory alloy hollow spheres equipped on lower part. 专利
申请日期: 2009-01-01, 公开日期: 2009-10-28
作者:  LI H YI T
收藏  |  浏览/下载:2/0  |  提交时间:2019/12/24


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