采用数值方法对表面约束下的沉桩挤土效应进行了研究。
Based on the numerical method, the effect of squeezing soil due to pile driven in soft clay and restrained on surface was researched.
旋转的细菌，在表面形成一层受约束的纤维素线。
The bacteria spin cellulose threads, which bind on the surface forming a layer.
非生命物质，由于热力学和形态动力学约束，得到的自然发生的性质是丰富多彩的：矿物的硬度，金属的延展性，以及液体表面的张力。
Emergent properties arising via thermodynamic and morphodynamic constraints are abundant in non-life: the hardness of minerals; the malleability of metals; the surface tension of liquids.
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