Low temperature stress is one of the main environmental factors which limit plant growth, development and distribution.
低温胁迫是限制植物生长发育和分布的主要环境因子之一。
The effects of the nonuniformity of porosity development and stress distribution on material bifurcations(plane shear bending and surface wrinkling)are investigated by means of numerical method.
利用数值方法研究材料空洞化和承受应力沿板厚分布的非均匀性对材料分叉(平板中平面剪切带和表面皱曲)的作用。
The dissertation detailedly explains the engineering geology conditions of Zhe Gu Mount Tunnel area, and has researched the crustal stress development process and the regulation of distribution.
本文详细阐明了鹧鸪山隧道区工程地质条件,对隧道区地应力场演化过程及分布规律进行了研究;
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