求翻译：这些设施一向都不向公众公开，但是这次却敞开大门，向参观者展示LVMH集团旗下各类商品的高端技艺。目前，已有100,000位参观者参观了法国，意大利，苏格兰，波兰等地的展厅。位于Avenue Montaigne的Dior总部向参观者展示了Salon de Prestige，这是创立者christian Dior先生一直用来展示自己设计系列的一个厅。品牌的工匠向参观者展示了高超的技艺，已在Dior工作了8年的Huseyin Dil先生告诉参观者一些裙子需要花上250－300多个小时缝制。是什么意思？

These facilities have never been open to the public, but this time they open the door, visitors to all kinds of goods LVMH Group's high-end skills. At present, 100,000 visitors toured France, Italy, Scotland, Poland and other places of exhibition. Dior Avenue Montaigne headquarters is located in the