At about 5GPaand 1400℃, xerogel gamma alumina (XGA) transformed into apolymorphic mixture of phases αAl2O3,B Al2O3 and C Al2O3,while XGA containing 1wt% Cr2O3 transformed into a mixture ofphasesαAl2O3,B Al2O3 and C Al2O3 and k' Al2O3. The phases BAl2O3 and C Al...
QQ浏览器 360浏览器 第1集 宋江误入清风山 热度:7 状态:2集全 类型:文学文史 年份:2021 首播时间:20210127 语言/字幕:汉语 更新时间:20210127 简介:路上读书APP上传的教育视频:水浒全传.85宋江误入清风山,粉丝数335823,作品数14081,在线观看,视频简介:宋江清风山遇“二虎”...
WA52-A antibiotic macrolide in nature having; anti Gram-positive and anti Gram-negative bacteria; was extracted from cell free culture of alkalophile strain which isolated from a sandy soil in Wadi Araba, Egypt. The strain has been identified as Nocardiopsis dassonvillei WA52 based on taxonomi...
Al-Ni-La-Cu系Al-基合金溅射靶及其制造方法 本发明提供一种能减少使用含有Ni,La以及Cu的Al-Ni-La-Cu系Al-基合金溅射靶成膜时产生的飞溅的技术.含有Ni,La以及Cu的Al-Ni-La-Cu系Al-基合金溅射靶中,使用扫描型电子显微镜(2000倍)观察垂直于所述溅射靶的平面的截面的1/4t～3/4t(t为厚度)的部位时,(1)关...