physical-chemical characteristic

• 物理化学特性

physical-chemical characteristic的用法和样例：

例句

1. Although skin can be a relatively impermeable barrier, a few drugs have just the right physical and chemical characteristics to cross it at reasonable rates.
   虽然皮肤是相当不易穿透的障碍，但少数药物的物理化学特性，恰好能让这些药物以合理的速率穿过皮肤。