Taking the front floor as an example, mainly introduced the hoisting wedge driver installed in active pressing material core and making use of reverse wedge driver to form the up flanging structure.

以某车型前地板为例，重点介绍了吊装斜楔驱动器安装在活动压料芯上的结构和利用反向斜楔完成向上翻边的结构。

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In core making with cold core box, the solvent content in the binding material has a greater influence on the sand core strength.

采用冷芯盒法制芯时，粘结剂中的溶剂含量对砂芯强度有较大影响。

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Bottom web is the core of pressing paper making felt, the material and stitch structure of bottom web has important influence on making felt property.

底网是造纸压榨毛毯的骨架，其选用原料、组织结构对毛毯的性能有重要影响。

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