For example, the depreciation expense of the fixed assets used in the basic production workshop should be recorded in the depreciation expense item in the manufacturing expense subsidiary ledger; Depreciation expenses of fixed assets used in auxiliary production workshops are recorded in the subsidiary ledger of auxiliary production expenses; The depreciation expense of fixed assets used by the administrative department of an enterprise shall be charged in the depreciation expense item in the subsidiary ledger of management expenses; Depreciation expenses of fixed assets used by the sales department should be recorded in the relevant items of the subsidiary ledger of product sales expenses.