The theory of reinforced concrete membrane elements was used to develop a theoretical method for analyzing the behavior of beam column core regions.

用钢筋混凝土薄膜元理论 ，建立了节点区受力分析的理论方法 ；

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The column core can then be pushed out and the zones of material cut apart, or the zones can be eluted by passing more solvent down the column and collecting it in small fractions.

然后将此柱的芯子推出，将各段物料分开，或者用更多溶剂通过此柱以洗提各区段，然后收集各小组分的物料。

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We also wrapped the core column with light-transmitting bamboo boards to form a light-box, which transforms the previously heavy concrete block into a light and lively focus object.

我们也八核心柱用透光竹板包裹成一个“光箱”，从而使原来凝重的混凝土体块变成轻快、生动的视觉中心。

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As Morford sees it, he's got a column and a core of fans, so he can do his own marketing.

NPR: iPad Could Help Self-Publishers Kick Open Doors

In a previous column, I discussed two of my core investment themes for the next 12-18 months, gold and bonds.

FORBES: More themes for the coming year