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Table 2 Table of the key prevention areas in the future

From: The history of rescuing reinforcement and the preliminary study of preventive protection system for the cliff of Mogao Grottoes in Dunhuang, China

Types Cliff Caves Ancillary facilities
Key considerations Fissure Thin roof caves
Thin Wall between caves
Top and corner of caves
Caves near the top of the cliff
Densely distributed caves
Facilities which have produced displacements
Reinforcement measures separated from the cliff