brother 发表于 2025-3-30 09:10:29
http://reply.papertrans.cn/67/6622/662153/662153_51.pngHarness 发表于 2025-3-30 13:49:02
Joachim Bauer,Gerhard Müllerrongly related to the purpose of the object. Moreover, it is carrying information on the artistic and technical skills of the builders. It is however also prone to weathering and deterioration. A prerequisite for a careful restoration of the surface of historic buildings and monuments is a thorough