ubac的意思|示意

The soil hydrology-physical properties of the soils adret and ubac of the forest was studied, through two-year observation(2003~2004) and comparision in the artificial forest of Cinnamomum camphora(L.

对樟树人工林林地不同坡向阳坡和阴坡的土壤水文-物理性质进行为期两年的观测和对比分析。

The absorption curves of the brightener UBAC 1a of bright acid copper plating and cupric sulfate of the bath were mensurated by experiments respectively.

通过实验分别测定了酸性镀铜光亮剂ubac 1a和镀液中硫酸铜的吸收曲线。