挤压加工：的特点是将尺寸减缩或将直径压入模孔。

Extruding: Extruding is the process of reducing the size of some feature or diameter by forcing it through a die.

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针对流化床中气流通过布风板时压力损失过大，本文对循环流化床冷模布风板的开孔直径和布孔形式做了数值模拟研究。

Because pressure loss oversized when gas went through distributor in FB, this article studied hole diameter and hole arrangement form in the circulating fluidized bed (CFB) by Fluent software.

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