poly(ε-caprolactone-co-δ-valerolactone)相关论文
Synthesis and Characterization of Poly(ε-caprolactone-co-δ-valerolactone) with Pendant Carboxylic Fu
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......