为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

以absolutely为例，结合共时与历时主观化框架，对英语极性强化词的语义演化路径加以追踪，发现abso—lutely的意义体现了客观义〈主观义......

With the help of a radially invariant vector field, we derive inequalities of the Hardy kind, with no boundary terms, fo......