For the limestone and SBS I-D asphalt mastic, the penetrationindex values also showed an optimum dust to binder ratio but with higher values than other mastics.
对于添加石灰石的SBS I - D沥青胶浆，其针入度指数同样表现一最佳矿粉结合料比，该比值高于其他胶浆的最佳矿粉结合料比。
2
The skin barrier function was estimated by the change of tritium penetration rate as the index.
采用液体闪烁法测定氚的经皮渗透行为，以氚经皮渗透速率的变化作为离体皮肤屏障功能的评价指标。
3
In the model, the leaf area index (LAI), crop coefficients, and root penetration and distribution were simulated for the winter wheat and summer corn double cropping system.