stiff clay是什么意思

用法例句

A few stiff clay layer in the shallow of Shanghai municipality;

上海市浅部数层硬土的沉积环境、时代及划分对比

Deformation monitoring and analysis of foundation pits on stiff clay;

硬土场地基坑变形监测与分析

Influence of shallow leck on bearing capacity of single piles in lagoon-marsh deposits area of shanghai;

上海湖沼平原浅层硬土对单桩承载力的影响