sub-stiff soil 次硬土
stiff soil-aquiclude 硬土隔水层
secondary stiff soil 次生硬土
dark -green stiff soil 暗绿色硬土
Moderate stiff soil sites 中硬场地
stiff cement soil mixed pile 劲性水泥土搅拌桩
Once it reaches the surface of the soil, the slug undergoes another transformation: Most of the cells turn into a stiff stalk, while the others crawl to the top and form a sticky ball of spores.
一旦接触土壤表面，这条“鼻涕虫”就会发生另一种变形：大部分细胞变成一个硬柄，其余则的爬到顶端形成一个黏黏的孢子球。
Stiffness variation of backfilled soil played a small role on superstructure response when the substratum was relative stiff and the box foundation embedment was shallow.
箱基埋置深度浅、下卧土层刚度较大时，箱基周围回填土属性对结构反应影响不大；
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