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The density, electrical contact resistance and hardness of these two alloys were tested. The results show that Ag and rare earth oxide appear in Ag-Y and Ag-Ce alloy after internal oxidation. The distribution of oxide particles is inhomogeneous and seriously conglomerated in Ag-Y2O3 and Ag-CeO2 sintered bulk, but they are dispersed and uniform in Ag matrix after severe plastic deformation. The relative densities of wire materials are larger than 99% and the electrical contact resistances are low (＜2.2 μΩcm).
结果表明：Ag-Y和Ag-Ce合金粉末经内氧化处理后生成Ag和稀土氧化物2种物相；Ag-Y2O3和Ag-CeO2材料烧结坯中氧化物颗粒分布不均匀且团聚严重，但材料经过大变形加工后，氧化物颗粒细小，均匀地弥散分布在银基体上；最终产品丝材的相对密度均达到99%以上，电阻率较低(＜2.2 μΩcm)。
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Heat treatment on the preparation,structure,electrovalence of silver,releasing speed of Ag ions and antibacterial property of obtained blocks were investigated.A ultraviolet-visible spectrum of Ag-carrying material treated at 600℃ indicates that there are plenty of Ag ions in Ag-carrying SiO 2 .The Ag ions can be released stably into water of 30℃ for 14 d.
考察热处理制度对抗菌块体的制备及结构、银价态、银离子释放速度、抗菌性能的影响。600℃热处理的抗菌块体紫外-可见吸收光谱表明：SiO 2 载体中富含银粒子，并且此抗菌块体在水中能保持较长期（14d）的稳定溶出。
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A human promyelocytic leukemia cell mutant (HL-60-AR) with deficiency in HGPRT and resistance to 8-AG was established by treat〓nt of the HL-60 cells with MNNG and prescreened in 0.3% agar RPMI-1640 semisolid medium containing 8-AG. The mutant cells show the following characteristics:(1) resistant to cytotoxic action of 8-AG and growing vigorously in medium containing 20ug/ml 8-AG;(2) capable of forming 〓〓 colonies in soft agar medium in the presenee of 8-AG:(3) highly sensitive to HAT selective medium and fail to growing in HAT medium of form colonies in soft agar medium containing HAT;(4) completely deficinet in HGPRT activity; and (5) no radioactive silver grains over the mutant cells due to the absence of -hypoxanthine incorporation showed by radioautography.
一、用MNNG诱变和8-AG进行抗性筛选，成功地建立了一株抗高浓度8-AG和完全缺失HGPRT活性的人早幼粒白血病细胞突变株(HL-60-AR)，该细胞能抵抗8-AG的毒性作用，对HAT选择培养基十分敏感，检测不到HGHRT活性，不能参入〓H一次黄嘌呤。
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Ag：银
与氧硫 碳和卤素的化合物都相当稳定金 重有色金属属 密度 4.5kg/m 以上的有色金属;如铜(Cu) 镍(Ni) 铅(Pb) 锌(Zn) 锡(Sn) 等;在国民 经济各部门中,每种重有色金属根据其特性都有特殊的应用范围和用途;材 贵有色金属 包括金(Au) 银(Ag) 铂(Pt)族元素,
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Ag：阿哥
Word List2:agent代理人;代理商-阿哥(ag)进(ent)公司当代理商(agent)侵略的,好斗的--好斗的阿哥(ag)走(gress)到了生命(ive)的尽头或好斗的阿哥(ag)果然(gr)结束了欧洲(e)两个女人(ss)的生命(ive)agriculture 1.农业,
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Ag：抗原
用鸡传染性法氏囊病毒(IBDV)免疫雏鸡,纯化其IgG(Ab1)免疫兔制备Ab2,Ab2经正常鸡IgG(NC-IgG)和IBD抗原(Ag)吸收后,加佐剂免疫雏鸡,免疫保护指数:Ab2组分别为:100%、100%、90%;对照组:0%.重复实验:50只雏鸡接种3次Ab2免疫,
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Ag：应用网关
一、下一代网络的构成 分组化的、开放的、分层的网络架构体系是下一代网络的显著特摘要:华为UA5000作为新一代多业务接入节点(MSAN)设备,不仅可以实现宽窄带一体化接入,同时,在未来的网络架构中,也可以作为NGN网络部件--应用网关(AG),是运营商第一个可
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Ag：abbr. air guard; 空气护罩
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