Many people in the area use stone mortars and pestles made by the stone carvers.

该地区的许多人使用石雕工人制作的石臼和研钵。

These researchers were tasked with evaluating the condition of the damaged, stone, mortar and metal, and guiding engineers on the best way to restore the cathedral.

这些研究人员的任务是评估损坏的石头、砂浆和金属的状况，并指导工程师以最佳方式修复大教堂。