Chisel marks from the Northern Wei, chisel traces of the glorious Tang Dynasty… On the cliffs of the Longmen Grottoes, enduring imprints of civilization are engraved. Here lies an invisible network, operating 24 hours a day, 365 days a year, sensing the most subtle pulses of this millennia-old wonder.【I Restore Cultural Relics at the Longmen Grottoes】Episode 3: Cave Monitoring. 北魏的錾痕、盛唐的凿印……在龙门石窟的崖壁间，镌刻着恒久的文明印记。在这里有一张看不见的网，365天、24小时感知着这座千年石窟最细微的脉搏。纪录片《我在龙门修文物》第三期：石窟监测。 #龙门石窟 #洛阳国际传播中心 #LICC 点击关注@洛阳国际传播中心