Hé / tóng / guī / dìng / shè / bèi / jí / qí / nèi / de / zī / liào / dōu / bì / xū / tuǒ / shàn / bǎo / guǎn

合同规定，设备及其内的资料都必须妥善保管。

The contract stipulates that the equipment and the materials within it must be properly kept.