铟是德国·科学家赖希(F.Reich)和里希特(T.Richter)于1863年在研究闪锌矿样品并用光谱法分析制取氧化锌溶液时发现的，同年，里希特分......

An earthquake measuring 8.0 on the Richterscale struck Sichuan Province at 14:28 on May12th, 2008.The epicenter was in W......

普通高中课程标准实验教科书《数学·A版·必修1》（人民教育出版社2007年第2版）第66-67页的例5介绍了地震的里氏震级.　　20世纪30年......

An intensive earthquake, the Wenchuan Earthquake of 8.0 on the Richter scale, struck western Sichuan, China on May 12, 2......

Many authors have reported the techniques to iterate nonlinear equations oncomplex plane, but generally, the sise of ima......

<正>慢性淋巴细胞白血病(chronic lymphocytic leukemia,CLL)是一种慢性淋巴细胞增殖性疾病,以成熟CD5+B淋巴细胞在外周血、骨髓、......