The effects of impurity element of Fe and microelements of Zn, Cr and Ti on the constituents,dispersoids, grain size, me......

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......

为了研究在褐煤中发现的上新世云南铁杉(Pliocene Tsuga dumosa)木化石的化学成分,采用气相色谱-质谱联用技术和柱层析方法分别检......

Chemical investigation of the organic solvent extract of Cretaceous Ginkgo coriacea Florin leaves by liquid chromatograp......