古建

gǔ jiàn bǎo cún jì shù

古建保存技术

ancient building preservation technology

gǔ jiàn qún

古建群

ancient buildings group

fǎng gǔ jiàn wài qiáng

仿古建外墙

antique building exterior wall

gǔ jiàn xiū zhù fāng àn

古建修筑方案

antique building and repairing project