extruded porous sections

例句：

1. 1. The engineer used a special tool to extrude the porous sections of the metal.
   工程师使用一种特殊的工具来挤压金属的多孔部分。
2. 2.The construction company was tasked with the difficult task of extruding porous sections from the concrete.
   建筑公司被分配了一项艰巨的任务，即从混凝土中挤出多孔部分。
3. 3. The scientist discovered that the porous sections of the rock were responsible for its unique properties.
   科学家发现岩石的多孔部分是其独特性质的原因。