[经] combined depreciation-and-upkeep method
zhé jiù yǔ bǎo yǎng hé bìng fǎ ㄓㄜˊ ㄐㄧㄡˋ ㄩˇ ㄅㄠˇ ㄧㄤˇ ㄏㄜˊ ㄅㄧㄥˋ ㄈㄚˇ
折旧与保养合并法