impermeable barrier meaning in Chinese

不可渗透层
不可渗阻流层
不渗水层
不渗透边界
不渗透遮挡层
不透层
不透水层
不透水隔层
不透水煤柱
不透水体
不透水阻体

Divisional method and characteristic analysis of impermeable barrier layers in carbonate rock formation
碳酸盐岩储层中非渗透性隔层的识别及分类评价
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。